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1 /*
2  * OMAP5 HDMI CORE IP driver library
3  *
4  * Copyright (C) 2014 Texas Instruments Incorporated
5  *
6  * Authors:
7  *	Yong Zhi
8  *	Mythri pk
9  *	Archit Taneja <archit@ti.com>
10  *	Tomi Valkeinen <tomi.valkeinen@ti.com>
11  *
12  * This program is free software; you can redistribute it and/or modify it
13  * under the terms of the GNU General Public License version 2 as published by
14  * the Free Software Foundation.
15  *
16  * This program is distributed in the hope that it will be useful, but WITHOUT
17  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
19  * more details.
20  *
21  * You should have received a copy of the GNU General Public License along with
22  * this program.  If not, see <http://www.gnu.org/licenses/>.
23  */
24 
25 #include <linux/kernel.h>
26 #include <linux/module.h>
27 #include <linux/err.h>
28 #include <linux/io.h>
29 #include <linux/delay.h>
30 #include <linux/string.h>
31 #include <linux/seq_file.h>
32 #include <drm/drm_edid.h>
33 #if defined(CONFIG_OMAP5_DSS_HDMI_AUDIO)
34 #include <sound/asound.h>
35 #include <sound/asoundef.h>
36 #endif
37 
38 #include "hdmi5_core.h"
39 
40 /* only 24 bit color depth used for now */
41 static const struct csc_table csc_table_deepcolor[] = {
42 	/* HDMI_DEEP_COLOR_24BIT */
43 	[0] = { 7036, 0, 0, 32, 0, 7036, 0, 32, 0, 0, 7036, 32, },
44 	/* HDMI_DEEP_COLOR_30BIT */
45 	[1] = { 7015, 0, 0, 128, 0, 7015, 0, 128, 0, 0, 7015, 128, },
46 	/* HDMI_DEEP_COLOR_36BIT */
47 	[2] = { 7010, 0, 0, 512, 0, 7010, 0, 512, 0, 0, 7010, 512, },
48 	/* FULL RANGE */
49 	[3] = { 8192, 0, 0, 0, 0, 8192, 0, 0, 0, 0, 8192, 0, },
50 };
51 
hdmi_core_ddc_init(struct hdmi_core_data * core)52 static void hdmi_core_ddc_init(struct hdmi_core_data *core)
53 {
54 	void __iomem *base = core->base;
55 	const unsigned long long iclk = 266000000;	/* DSS L3 ICLK */
56 	const unsigned ss_scl_high = 4000;		/* ns */
57 	const unsigned ss_scl_low = 4700;		/* ns */
58 	const unsigned fs_scl_high = 600;		/* ns */
59 	const unsigned fs_scl_low = 1300;		/* ns */
60 	const unsigned sda_hold = 300;			/* ns */
61 	const unsigned sfr_div = 10;
62 	unsigned long long sfr;
63 	unsigned v;
64 
65 	sfr = iclk / sfr_div;	/* SFR_DIV */
66 	sfr /= 1000;		/* SFR clock in kHz */
67 
68 	/* Reset */
69 	REG_FLD_MOD(base, HDMI_CORE_I2CM_SOFTRSTZ, 0, 0, 0);
70 	if (hdmi_wait_for_bit_change(base, HDMI_CORE_I2CM_SOFTRSTZ,
71 				0, 0, 1) != 1)
72 		DSSERR("HDMI I2CM reset failed\n");
73 
74 	/* Standard (0) or Fast (1) Mode */
75 	REG_FLD_MOD(base, HDMI_CORE_I2CM_DIV, 0, 3, 3);
76 
77 	/* Standard Mode SCL High counter */
78 	v = DIV_ROUND_UP_ULL(ss_scl_high * sfr, 1000000);
79 	REG_FLD_MOD(base, HDMI_CORE_I2CM_SS_SCL_HCNT_1_ADDR,
80 			(v >> 8) & 0xff, 7, 0);
81 	REG_FLD_MOD(base, HDMI_CORE_I2CM_SS_SCL_HCNT_0_ADDR,
82 			v & 0xff, 7, 0);
83 
84 	/* Standard Mode SCL Low counter */
85 	v = DIV_ROUND_UP_ULL(ss_scl_low * sfr, 1000000);
86 	REG_FLD_MOD(base, HDMI_CORE_I2CM_SS_SCL_LCNT_1_ADDR,
87 			(v >> 8) & 0xff, 7, 0);
88 	REG_FLD_MOD(base, HDMI_CORE_I2CM_SS_SCL_LCNT_0_ADDR,
89 			v & 0xff, 7, 0);
90 
91 	/* Fast Mode SCL High Counter */
92 	v = DIV_ROUND_UP_ULL(fs_scl_high * sfr, 1000000);
93 	REG_FLD_MOD(base, HDMI_CORE_I2CM_FS_SCL_HCNT_1_ADDR,
94 			(v >> 8) & 0xff, 7, 0);
95 	REG_FLD_MOD(base, HDMI_CORE_I2CM_FS_SCL_HCNT_0_ADDR,
96 			v & 0xff, 7, 0);
97 
98 	/* Fast Mode SCL Low Counter */
99 	v = DIV_ROUND_UP_ULL(fs_scl_low * sfr, 1000000);
100 	REG_FLD_MOD(base, HDMI_CORE_I2CM_FS_SCL_LCNT_1_ADDR,
101 			(v >> 8) & 0xff, 7, 0);
102 	REG_FLD_MOD(base, HDMI_CORE_I2CM_FS_SCL_LCNT_0_ADDR,
103 			v & 0xff, 7, 0);
104 
105 	/* SDA Hold Time */
106 	v = DIV_ROUND_UP_ULL(sda_hold * sfr, 1000000);
107 	REG_FLD_MOD(base, HDMI_CORE_I2CM_SDA_HOLD_ADDR, v & 0xff, 7, 0);
108 
109 	REG_FLD_MOD(base, HDMI_CORE_I2CM_SLAVE, 0x50, 6, 0);
110 	REG_FLD_MOD(base, HDMI_CORE_I2CM_SEGADDR, 0x30, 6, 0);
111 
112 	/* NACK_POL to high */
113 	REG_FLD_MOD(base, HDMI_CORE_I2CM_CTLINT, 0x1, 7, 7);
114 
115 	/* NACK_MASK to unmasked */
116 	REG_FLD_MOD(base, HDMI_CORE_I2CM_CTLINT, 0x0, 6, 6);
117 
118 	/* ARBITRATION_POL to high */
119 	REG_FLD_MOD(base, HDMI_CORE_I2CM_CTLINT, 0x1, 3, 3);
120 
121 	/* ARBITRATION_MASK to unmasked */
122 	REG_FLD_MOD(base, HDMI_CORE_I2CM_CTLINT, 0x0, 2, 2);
123 
124 	/* DONE_POL to high */
125 	REG_FLD_MOD(base, HDMI_CORE_I2CM_INT, 0x1, 3, 3);
126 
127 	/* DONE_MASK to unmasked */
128 	REG_FLD_MOD(base, HDMI_CORE_I2CM_INT, 0x0, 2, 2);
129 }
130 
hdmi_core_ddc_uninit(struct hdmi_core_data * core)131 static void hdmi_core_ddc_uninit(struct hdmi_core_data *core)
132 {
133 	void __iomem *base = core->base;
134 
135 	/* Mask I2C interrupts */
136 	REG_FLD_MOD(base, HDMI_CORE_I2CM_CTLINT, 0x1, 6, 6);
137 	REG_FLD_MOD(base, HDMI_CORE_I2CM_CTLINT, 0x1, 2, 2);
138 	REG_FLD_MOD(base, HDMI_CORE_I2CM_INT, 0x1, 2, 2);
139 }
140 
hdmi_core_ddc_edid(struct hdmi_core_data * core,u8 * pedid,u8 ext)141 static int hdmi_core_ddc_edid(struct hdmi_core_data *core, u8 *pedid, u8 ext)
142 {
143 	void __iomem *base = core->base;
144 	u8 cur_addr;
145 	char checksum = 0;
146 	const int retries = 1000;
147 	u8 seg_ptr = ext / 2;
148 	u8 edidbase = ((ext % 2) * 0x80);
149 
150 	REG_FLD_MOD(base, HDMI_CORE_I2CM_SEGPTR, seg_ptr, 7, 0);
151 
152 	/*
153 	 * TODO: We use polling here, although we probably should use proper
154 	 * interrupts.
155 	 */
156 	for (cur_addr = 0; cur_addr < 128; ++cur_addr) {
157 		int i;
158 
159 		/* clear ERROR and DONE */
160 		REG_FLD_MOD(base, HDMI_CORE_IH_I2CM_STAT0, 0x3, 1, 0);
161 
162 		REG_FLD_MOD(base, HDMI_CORE_I2CM_ADDRESS,
163 				edidbase + cur_addr, 7, 0);
164 
165 		if (seg_ptr)
166 			REG_FLD_MOD(base, HDMI_CORE_I2CM_OPERATION, 1, 1, 1);
167 		else
168 			REG_FLD_MOD(base, HDMI_CORE_I2CM_OPERATION, 1, 0, 0);
169 
170 		for (i = 0; i < retries; ++i) {
171 			u32 stat;
172 
173 			stat = REG_GET(base, HDMI_CORE_IH_I2CM_STAT0, 1, 0);
174 
175 			/* I2CM_ERROR */
176 			if (stat & 1) {
177 				DSSERR("HDMI I2C Master Error\n");
178 				return -EIO;
179 			}
180 
181 			/* I2CM_DONE */
182 			if (stat & (1 << 1))
183 				break;
184 
185 			usleep_range(250, 1000);
186 		}
187 
188 		if (i == retries) {
189 			DSSERR("HDMI I2C timeout reading EDID\n");
190 			return -EIO;
191 		}
192 
193 		pedid[cur_addr] = REG_GET(base, HDMI_CORE_I2CM_DATAI, 7, 0);
194 		checksum += pedid[cur_addr];
195 	}
196 
197 	return 0;
198 
199 }
200 
hdmi5_read_edid(struct hdmi_core_data * core,u8 * edid,int len)201 int hdmi5_read_edid(struct hdmi_core_data *core, u8 *edid, int len)
202 {
203 	int r, n, i;
204 	int max_ext_blocks = (len / 128) - 1;
205 
206 	if (len < 128)
207 		return -EINVAL;
208 
209 	hdmi_core_ddc_init(core);
210 
211 	r = hdmi_core_ddc_edid(core, edid, 0);
212 	if (r)
213 		goto out;
214 
215 	n = edid[0x7e];
216 
217 	if (n > max_ext_blocks)
218 		n = max_ext_blocks;
219 
220 	for (i = 1; i <= n; i++) {
221 		r = hdmi_core_ddc_edid(core, edid + i * EDID_LENGTH, i);
222 		if (r)
223 			goto out;
224 	}
225 
226 out:
227 	hdmi_core_ddc_uninit(core);
228 
229 	return r ? r : len;
230 }
231 
hdmi5_core_dump(struct hdmi_core_data * core,struct seq_file * s)232 void hdmi5_core_dump(struct hdmi_core_data *core, struct seq_file *s)
233 {
234 
235 #define DUMPCORE(r) seq_printf(s, "%-35s %08x\n", #r,\
236 		hdmi_read_reg(core->base, r))
237 
238 	DUMPCORE(HDMI_CORE_FC_INVIDCONF);
239 	DUMPCORE(HDMI_CORE_FC_INHACTIV0);
240 	DUMPCORE(HDMI_CORE_FC_INHACTIV1);
241 	DUMPCORE(HDMI_CORE_FC_INHBLANK0);
242 	DUMPCORE(HDMI_CORE_FC_INHBLANK1);
243 	DUMPCORE(HDMI_CORE_FC_INVACTIV0);
244 	DUMPCORE(HDMI_CORE_FC_INVACTIV1);
245 	DUMPCORE(HDMI_CORE_FC_INVBLANK);
246 	DUMPCORE(HDMI_CORE_FC_HSYNCINDELAY0);
247 	DUMPCORE(HDMI_CORE_FC_HSYNCINDELAY1);
248 	DUMPCORE(HDMI_CORE_FC_HSYNCINWIDTH0);
249 	DUMPCORE(HDMI_CORE_FC_HSYNCINWIDTH1);
250 	DUMPCORE(HDMI_CORE_FC_VSYNCINDELAY);
251 	DUMPCORE(HDMI_CORE_FC_VSYNCINWIDTH);
252 	DUMPCORE(HDMI_CORE_FC_CTRLDUR);
253 	DUMPCORE(HDMI_CORE_FC_EXCTRLDUR);
254 	DUMPCORE(HDMI_CORE_FC_EXCTRLSPAC);
255 	DUMPCORE(HDMI_CORE_FC_CH0PREAM);
256 	DUMPCORE(HDMI_CORE_FC_CH1PREAM);
257 	DUMPCORE(HDMI_CORE_FC_CH2PREAM);
258 	DUMPCORE(HDMI_CORE_FC_AVICONF0);
259 	DUMPCORE(HDMI_CORE_FC_AVICONF1);
260 	DUMPCORE(HDMI_CORE_FC_AVICONF2);
261 	DUMPCORE(HDMI_CORE_FC_AVIVID);
262 	DUMPCORE(HDMI_CORE_FC_PRCONF);
263 
264 	DUMPCORE(HDMI_CORE_MC_CLKDIS);
265 	DUMPCORE(HDMI_CORE_MC_SWRSTZREQ);
266 	DUMPCORE(HDMI_CORE_MC_FLOWCTRL);
267 	DUMPCORE(HDMI_CORE_MC_PHYRSTZ);
268 	DUMPCORE(HDMI_CORE_MC_LOCKONCLOCK);
269 
270 	DUMPCORE(HDMI_CORE_I2CM_SLAVE);
271 	DUMPCORE(HDMI_CORE_I2CM_ADDRESS);
272 	DUMPCORE(HDMI_CORE_I2CM_DATAO);
273 	DUMPCORE(HDMI_CORE_I2CM_DATAI);
274 	DUMPCORE(HDMI_CORE_I2CM_OPERATION);
275 	DUMPCORE(HDMI_CORE_I2CM_INT);
276 	DUMPCORE(HDMI_CORE_I2CM_CTLINT);
277 	DUMPCORE(HDMI_CORE_I2CM_DIV);
278 	DUMPCORE(HDMI_CORE_I2CM_SEGADDR);
279 	DUMPCORE(HDMI_CORE_I2CM_SOFTRSTZ);
280 	DUMPCORE(HDMI_CORE_I2CM_SEGPTR);
281 	DUMPCORE(HDMI_CORE_I2CM_SS_SCL_HCNT_1_ADDR);
282 	DUMPCORE(HDMI_CORE_I2CM_SS_SCL_HCNT_0_ADDR);
283 	DUMPCORE(HDMI_CORE_I2CM_SS_SCL_LCNT_1_ADDR);
284 	DUMPCORE(HDMI_CORE_I2CM_SS_SCL_LCNT_0_ADDR);
285 	DUMPCORE(HDMI_CORE_I2CM_FS_SCL_HCNT_1_ADDR);
286 	DUMPCORE(HDMI_CORE_I2CM_FS_SCL_HCNT_0_ADDR);
287 	DUMPCORE(HDMI_CORE_I2CM_FS_SCL_LCNT_1_ADDR);
288 	DUMPCORE(HDMI_CORE_I2CM_FS_SCL_LCNT_0_ADDR);
289 	DUMPCORE(HDMI_CORE_I2CM_SDA_HOLD_ADDR);
290 }
291 
hdmi_core_init(struct hdmi_core_vid_config * video_cfg,struct hdmi_config * cfg)292 static void hdmi_core_init(struct hdmi_core_vid_config *video_cfg,
293 			struct hdmi_config *cfg)
294 {
295 	DSSDBG("hdmi_core_init\n");
296 
297 	/* video core */
298 	video_cfg->data_enable_pol = 1; /* It is always 1*/
299 	video_cfg->v_fc_config.timings.hsync_level = cfg->timings.hsync_level;
300 	video_cfg->v_fc_config.timings.x_res = cfg->timings.x_res;
301 	video_cfg->v_fc_config.timings.hsw = cfg->timings.hsw - 1;
302 	video_cfg->v_fc_config.timings.hbp = cfg->timings.hbp;
303 	video_cfg->v_fc_config.timings.hfp = cfg->timings.hfp;
304 	video_cfg->hblank = cfg->timings.hfp +
305 				cfg->timings.hbp + cfg->timings.hsw - 1;
306 	video_cfg->v_fc_config.timings.vsync_level = cfg->timings.vsync_level;
307 	video_cfg->v_fc_config.timings.y_res = cfg->timings.y_res;
308 	video_cfg->v_fc_config.timings.vsw = cfg->timings.vsw;
309 	video_cfg->v_fc_config.timings.vfp = cfg->timings.vfp;
310 	video_cfg->v_fc_config.timings.vbp = cfg->timings.vbp;
311 	video_cfg->vblank_osc = 0; /* Always 0 - need to confirm */
312 	video_cfg->vblank = cfg->timings.vsw +
313 				cfg->timings.vfp + cfg->timings.vbp;
314 	video_cfg->v_fc_config.hdmi_dvi_mode = cfg->hdmi_dvi_mode;
315 	video_cfg->v_fc_config.timings.interlace = cfg->timings.interlace;
316 }
317 
318 /* DSS_HDMI_CORE_VIDEO_CONFIG */
hdmi_core_video_config(struct hdmi_core_data * core,struct hdmi_core_vid_config * cfg)319 static void hdmi_core_video_config(struct hdmi_core_data *core,
320 			struct hdmi_core_vid_config *cfg)
321 {
322 	void __iomem *base = core->base;
323 	unsigned char r = 0;
324 	bool vsync_pol, hsync_pol;
325 
326 	vsync_pol =
327 		cfg->v_fc_config.timings.vsync_level == OMAPDSS_SIG_ACTIVE_HIGH;
328 	hsync_pol =
329 		cfg->v_fc_config.timings.hsync_level == OMAPDSS_SIG_ACTIVE_HIGH;
330 
331 	/* Set hsync, vsync and data-enable polarity  */
332 	r = hdmi_read_reg(base, HDMI_CORE_FC_INVIDCONF);
333 	r = FLD_MOD(r, vsync_pol, 6, 6);
334 	r = FLD_MOD(r, hsync_pol, 5, 5);
335 	r = FLD_MOD(r, cfg->data_enable_pol, 4, 4);
336 	r = FLD_MOD(r, cfg->vblank_osc, 1, 1);
337 	r = FLD_MOD(r, cfg->v_fc_config.timings.interlace, 0, 0);
338 	hdmi_write_reg(base, HDMI_CORE_FC_INVIDCONF, r);
339 
340 	/* set x resolution */
341 	REG_FLD_MOD(base, HDMI_CORE_FC_INHACTIV1,
342 			cfg->v_fc_config.timings.x_res >> 8, 4, 0);
343 	REG_FLD_MOD(base, HDMI_CORE_FC_INHACTIV0,
344 			cfg->v_fc_config.timings.x_res & 0xFF, 7, 0);
345 
346 	/* set y resolution */
347 	REG_FLD_MOD(base, HDMI_CORE_FC_INVACTIV1,
348 			cfg->v_fc_config.timings.y_res >> 8, 4, 0);
349 	REG_FLD_MOD(base, HDMI_CORE_FC_INVACTIV0,
350 			cfg->v_fc_config.timings.y_res & 0xFF, 7, 0);
351 
352 	/* set horizontal blanking pixels */
353 	REG_FLD_MOD(base, HDMI_CORE_FC_INHBLANK1, cfg->hblank >> 8, 4, 0);
354 	REG_FLD_MOD(base, HDMI_CORE_FC_INHBLANK0, cfg->hblank & 0xFF, 7, 0);
355 
356 	/* set vertial blanking pixels */
357 	REG_FLD_MOD(base, HDMI_CORE_FC_INVBLANK, cfg->vblank, 7, 0);
358 
359 	/* set horizontal sync offset */
360 	REG_FLD_MOD(base, HDMI_CORE_FC_HSYNCINDELAY1,
361 			cfg->v_fc_config.timings.hfp >> 8, 4, 0);
362 	REG_FLD_MOD(base, HDMI_CORE_FC_HSYNCINDELAY0,
363 			cfg->v_fc_config.timings.hfp & 0xFF, 7, 0);
364 
365 	/* set vertical sync offset */
366 	REG_FLD_MOD(base, HDMI_CORE_FC_VSYNCINDELAY,
367 			cfg->v_fc_config.timings.vfp, 7, 0);
368 
369 	/* set horizontal sync pulse width */
370 	REG_FLD_MOD(base, HDMI_CORE_FC_HSYNCINWIDTH1,
371 			(cfg->v_fc_config.timings.hsw >> 8), 1, 0);
372 	REG_FLD_MOD(base, HDMI_CORE_FC_HSYNCINWIDTH0,
373 			cfg->v_fc_config.timings.hsw & 0xFF, 7, 0);
374 
375 	/*  set vertical sync pulse width */
376 	REG_FLD_MOD(base, HDMI_CORE_FC_VSYNCINWIDTH,
377 			cfg->v_fc_config.timings.vsw, 5, 0);
378 
379 	/* select DVI mode */
380 	REG_FLD_MOD(base, HDMI_CORE_FC_INVIDCONF,
381 			cfg->v_fc_config.hdmi_dvi_mode, 3, 3);
382 }
383 
hdmi_core_config_video_packetizer(struct hdmi_core_data * core)384 static void hdmi_core_config_video_packetizer(struct hdmi_core_data *core)
385 {
386 	void __iomem *base = core->base;
387 	int clr_depth = 0;	/* 24 bit color depth */
388 
389 	/* COLOR_DEPTH */
390 	REG_FLD_MOD(base, HDMI_CORE_VP_PR_CD, clr_depth, 7, 4);
391 	/* BYPASS_EN */
392 	REG_FLD_MOD(base, HDMI_CORE_VP_CONF, clr_depth ? 0 : 1, 6, 6);
393 	/* PP_EN */
394 	REG_FLD_MOD(base, HDMI_CORE_VP_CONF, clr_depth ? 1 : 0, 5, 5);
395 	/* YCC422_EN */
396 	REG_FLD_MOD(base, HDMI_CORE_VP_CONF, 0, 3, 3);
397 	/* PP_STUFFING */
398 	REG_FLD_MOD(base, HDMI_CORE_VP_STUFF, clr_depth ? 1 : 0, 1, 1);
399 	/* YCC422_STUFFING */
400 	REG_FLD_MOD(base, HDMI_CORE_VP_STUFF, 1, 2, 2);
401 	/* OUTPUT_SELECTOR */
402 	REG_FLD_MOD(base, HDMI_CORE_VP_CONF, clr_depth ? 0 : 2, 1, 0);
403 }
404 
hdmi_core_config_csc(struct hdmi_core_data * core)405 static void hdmi_core_config_csc(struct hdmi_core_data *core)
406 {
407 	int clr_depth = 0;	/* 24 bit color depth */
408 
409 	/* CSC_COLORDEPTH */
410 	REG_FLD_MOD(core->base, HDMI_CORE_CSC_SCALE, clr_depth, 7, 4);
411 }
412 
hdmi_core_config_video_sampler(struct hdmi_core_data * core)413 static void hdmi_core_config_video_sampler(struct hdmi_core_data *core)
414 {
415 	int video_mapping = 1;	/* for 24 bit color depth */
416 
417 	/* VIDEO_MAPPING */
418 	REG_FLD_MOD(core->base, HDMI_CORE_TX_INVID0, video_mapping, 4, 0);
419 }
420 
hdmi_core_write_avi_infoframe(struct hdmi_core_data * core,struct hdmi_avi_infoframe * frame)421 static void hdmi_core_write_avi_infoframe(struct hdmi_core_data *core,
422 	struct hdmi_avi_infoframe *frame)
423 {
424 	void __iomem *base = core->base;
425 	u8 data[HDMI_INFOFRAME_SIZE(AVI)];
426 	u8 *ptr;
427 	unsigned y, a, b, s;
428 	unsigned c, m, r;
429 	unsigned itc, ec, q, sc;
430 	unsigned vic;
431 	unsigned yq, cn, pr;
432 
433 	hdmi_avi_infoframe_pack(frame, data, sizeof(data));
434 
435 	print_hex_dump_debug("AVI: ", DUMP_PREFIX_NONE, 16, 1, data,
436 		HDMI_INFOFRAME_SIZE(AVI), false);
437 
438 	ptr = data + HDMI_INFOFRAME_HEADER_SIZE;
439 
440 	y = (ptr[0] >> 5) & 0x3;
441 	a = (ptr[0] >> 4) & 0x1;
442 	b = (ptr[0] >> 2) & 0x3;
443 	s = (ptr[0] >> 0) & 0x3;
444 
445 	c = (ptr[1] >> 6) & 0x3;
446 	m = (ptr[1] >> 4) & 0x3;
447 	r = (ptr[1] >> 0) & 0x3;
448 
449 	itc = (ptr[2] >> 7) & 0x1;
450 	ec = (ptr[2] >> 4) & 0x7;
451 	q = (ptr[2] >> 2) & 0x3;
452 	sc = (ptr[2] >> 0) & 0x3;
453 
454 	vic = ptr[3];
455 
456 	yq = (ptr[4] >> 6) & 0x3;
457 	cn = (ptr[4] >> 4) & 0x3;
458 	pr = (ptr[4] >> 0) & 0xf;
459 
460 	hdmi_write_reg(base, HDMI_CORE_FC_AVICONF0,
461 		(a << 6) | (s << 4) | (b << 2) | (y << 0));
462 
463 	hdmi_write_reg(base, HDMI_CORE_FC_AVICONF1,
464 		(c << 6) | (m << 4) | (r << 0));
465 
466 	hdmi_write_reg(base, HDMI_CORE_FC_AVICONF2,
467 		(itc << 7) | (ec << 4) | (q << 2) | (sc << 0));
468 
469 	hdmi_write_reg(base, HDMI_CORE_FC_AVIVID, vic);
470 
471 	hdmi_write_reg(base, HDMI_CORE_FC_AVICONF3,
472 		(yq << 2) | (cn << 0));
473 
474 	REG_FLD_MOD(base, HDMI_CORE_FC_PRCONF, pr, 3, 0);
475 }
476 
hdmi_core_csc_config(struct hdmi_core_data * core,struct csc_table csc_coeff)477 static void hdmi_core_csc_config(struct hdmi_core_data *core,
478 		struct csc_table csc_coeff)
479 {
480 	void __iomem *base = core->base;
481 
482 	REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_A1_MSB, csc_coeff.a1 >> 8 , 6, 0);
483 	REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_A1_LSB, csc_coeff.a1, 7, 0);
484 	REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_A2_MSB, csc_coeff.a2 >> 8, 6, 0);
485 	REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_A2_LSB, csc_coeff.a2, 7, 0);
486 	REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_A3_MSB, csc_coeff.a3 >> 8, 6, 0);
487 	REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_A3_LSB, csc_coeff.a3, 7, 0);
488 	REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_A4_MSB, csc_coeff.a4 >> 8, 6, 0);
489 	REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_A4_LSB, csc_coeff.a4, 7, 0);
490 	REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_B1_MSB, csc_coeff.b1 >> 8, 6, 0);
491 	REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_B1_LSB, csc_coeff.b1, 7, 0);
492 	REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_B2_MSB, csc_coeff.b2 >> 8, 6, 0);
493 	REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_B2_LSB, csc_coeff.b2, 7, 0);
494 	REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_B3_MSB, csc_coeff.b3 >> 8, 6, 0);
495 	REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_B3_LSB, csc_coeff.b3, 7, 0);
496 	REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_B4_MSB, csc_coeff.b4 >> 8, 6, 0);
497 	REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_B4_LSB, csc_coeff.b4, 7, 0);
498 	REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_C1_MSB, csc_coeff.c1 >> 8, 6, 0);
499 	REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_C1_LSB, csc_coeff.c1, 7, 0);
500 	REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_C2_MSB, csc_coeff.c2 >> 8, 6, 0);
501 	REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_C2_LSB, csc_coeff.c2, 7, 0);
502 	REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_C3_MSB, csc_coeff.c3 >> 8, 6, 0);
503 	REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_C3_LSB, csc_coeff.c3, 7, 0);
504 	REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_C4_MSB, csc_coeff.c4 >> 8, 6, 0);
505 	REG_FLD_MOD(base, HDMI_CORE_CSC_COEF_C4_LSB, csc_coeff.c4, 7, 0);
506 
507 	REG_FLD_MOD(base, HDMI_CORE_MC_FLOWCTRL, 0x1, 0, 0);
508 }
509 
hdmi_core_configure_range(struct hdmi_core_data * core)510 static void hdmi_core_configure_range(struct hdmi_core_data *core)
511 {
512 	struct csc_table csc_coeff = { 0 };
513 
514 	/* support limited range with 24 bit color depth for now */
515 	csc_coeff = csc_table_deepcolor[0];
516 
517 	hdmi_core_csc_config(core, csc_coeff);
518 }
519 
hdmi_core_enable_video_path(struct hdmi_core_data * core)520 static void hdmi_core_enable_video_path(struct hdmi_core_data *core)
521 {
522 	void __iomem *base = core->base;
523 
524 	DSSDBG("hdmi_core_enable_video_path\n");
525 
526 	REG_FLD_MOD(base, HDMI_CORE_FC_CTRLDUR, 0x0C, 7, 0);
527 	REG_FLD_MOD(base, HDMI_CORE_FC_EXCTRLDUR, 0x20, 7, 0);
528 	REG_FLD_MOD(base, HDMI_CORE_FC_EXCTRLSPAC, 0x01, 7, 0);
529 	REG_FLD_MOD(base, HDMI_CORE_FC_CH0PREAM, 0x0B, 7, 0);
530 	REG_FLD_MOD(base, HDMI_CORE_FC_CH1PREAM, 0x16, 5, 0);
531 	REG_FLD_MOD(base, HDMI_CORE_FC_CH2PREAM, 0x21, 5, 0);
532 	REG_FLD_MOD(base, HDMI_CORE_MC_CLKDIS, 0x00, 0, 0);
533 	REG_FLD_MOD(base, HDMI_CORE_MC_CLKDIS, 0x00, 1, 1);
534 }
535 
hdmi_core_mask_interrupts(struct hdmi_core_data * core)536 static void hdmi_core_mask_interrupts(struct hdmi_core_data *core)
537 {
538 	void __iomem *base = core->base;
539 
540 	/* Master IRQ mask */
541 	REG_FLD_MOD(base, HDMI_CORE_IH_MUTE, 0x3, 1, 0);
542 
543 	/* Mask all the interrupts in HDMI core */
544 
545 	REG_FLD_MOD(base, HDMI_CORE_VP_MASK, 0xff, 7, 0);
546 	REG_FLD_MOD(base, HDMI_CORE_FC_MASK0, 0xe7, 7, 0);
547 	REG_FLD_MOD(base, HDMI_CORE_FC_MASK1, 0xfb, 7, 0);
548 	REG_FLD_MOD(base, HDMI_CORE_FC_MASK2, 0x3, 1, 0);
549 
550 	REG_FLD_MOD(base, HDMI_CORE_AUD_INT, 0x3, 3, 2);
551 	REG_FLD_MOD(base, HDMI_CORE_AUD_GP_MASK, 0x3, 1, 0);
552 
553 	REG_FLD_MOD(base, HDMI_CORE_CEC_MASK, 0x7f, 6, 0);
554 
555 	REG_FLD_MOD(base, HDMI_CORE_I2CM_CTLINT, 0x1, 6, 6);
556 	REG_FLD_MOD(base, HDMI_CORE_I2CM_CTLINT, 0x1, 2, 2);
557 	REG_FLD_MOD(base, HDMI_CORE_I2CM_INT, 0x1, 2, 2);
558 
559 	REG_FLD_MOD(base, HDMI_CORE_PHY_MASK0, 0xf3, 7, 0);
560 
561 	REG_FLD_MOD(base, HDMI_CORE_IH_PHY_STAT0, 0xff, 7, 0);
562 
563 	/* Clear all the current interrupt bits */
564 
565 	REG_FLD_MOD(base, HDMI_CORE_IH_VP_STAT0, 0xff, 7, 0);
566 	REG_FLD_MOD(base, HDMI_CORE_IH_FC_STAT0, 0xe7, 7, 0);
567 	REG_FLD_MOD(base, HDMI_CORE_IH_FC_STAT1, 0xfb, 7, 0);
568 	REG_FLD_MOD(base, HDMI_CORE_IH_FC_STAT2, 0x3, 1, 0);
569 
570 	REG_FLD_MOD(base, HDMI_CORE_IH_AS_STAT0, 0x7, 2, 0);
571 
572 	REG_FLD_MOD(base, HDMI_CORE_IH_CEC_STAT0, 0x7f, 6, 0);
573 
574 	REG_FLD_MOD(base, HDMI_CORE_IH_I2CM_STAT0, 0x3, 1, 0);
575 
576 	REG_FLD_MOD(base, HDMI_CORE_IH_PHY_STAT0, 0xff, 7, 0);
577 }
578 
hdmi_core_enable_interrupts(struct hdmi_core_data * core)579 static void hdmi_core_enable_interrupts(struct hdmi_core_data *core)
580 {
581 	/* Unmute interrupts */
582 	REG_FLD_MOD(core->base, HDMI_CORE_IH_MUTE, 0x0, 1, 0);
583 }
584 
hdmi5_core_handle_irqs(struct hdmi_core_data * core)585 int hdmi5_core_handle_irqs(struct hdmi_core_data *core)
586 {
587 	void __iomem *base = core->base;
588 
589 	REG_FLD_MOD(base, HDMI_CORE_IH_FC_STAT0, 0xff, 7, 0);
590 	REG_FLD_MOD(base, HDMI_CORE_IH_FC_STAT1, 0xff, 7, 0);
591 	REG_FLD_MOD(base, HDMI_CORE_IH_FC_STAT2, 0xff, 7, 0);
592 	REG_FLD_MOD(base, HDMI_CORE_IH_AS_STAT0, 0xff, 7, 0);
593 	REG_FLD_MOD(base, HDMI_CORE_IH_PHY_STAT0, 0xff, 7, 0);
594 	REG_FLD_MOD(base, HDMI_CORE_IH_I2CM_STAT0, 0xff, 7, 0);
595 	REG_FLD_MOD(base, HDMI_CORE_IH_CEC_STAT0, 0xff, 7, 0);
596 	REG_FLD_MOD(base, HDMI_CORE_IH_VP_STAT0, 0xff, 7, 0);
597 	REG_FLD_MOD(base, HDMI_CORE_IH_I2CMPHY_STAT0, 0xff, 7, 0);
598 
599 	return 0;
600 }
601 
hdmi5_configure(struct hdmi_core_data * core,struct hdmi_wp_data * wp,struct hdmi_config * cfg)602 void hdmi5_configure(struct hdmi_core_data *core, struct hdmi_wp_data *wp,
603 		struct hdmi_config *cfg)
604 {
605 	struct omap_video_timings video_timing;
606 	struct hdmi_video_format video_format;
607 	struct hdmi_core_vid_config v_core_cfg;
608 
609 	hdmi_core_mask_interrupts(core);
610 
611 	hdmi_core_init(&v_core_cfg, cfg);
612 
613 	hdmi_wp_init_vid_fmt_timings(&video_format, &video_timing, cfg);
614 
615 	hdmi_wp_video_config_timing(wp, &video_timing);
616 
617 	/* video config */
618 	video_format.packing_mode = HDMI_PACK_24b_RGB_YUV444_YUV422;
619 
620 	hdmi_wp_video_config_format(wp, &video_format);
621 
622 	hdmi_wp_video_config_interface(wp, &video_timing);
623 
624 	/* support limited range with 24 bit color depth for now */
625 	hdmi_core_configure_range(core);
626 	cfg->infoframe.quantization_range = HDMI_QUANTIZATION_RANGE_LIMITED;
627 
628 	/*
629 	 * configure core video part, set software reset in the core
630 	 */
631 	v_core_cfg.packet_mode = HDMI_PACKETMODE24BITPERPIXEL;
632 
633 	hdmi_core_video_config(core, &v_core_cfg);
634 
635 	hdmi_core_config_video_packetizer(core);
636 	hdmi_core_config_csc(core);
637 	hdmi_core_config_video_sampler(core);
638 
639 	if (cfg->hdmi_dvi_mode == HDMI_HDMI)
640 		hdmi_core_write_avi_infoframe(core, &cfg->infoframe);
641 
642 	hdmi_core_enable_video_path(core);
643 
644 	hdmi_core_enable_interrupts(core);
645 }
646 
647 
648 #if defined(CONFIG_OMAP5_DSS_HDMI_AUDIO)
649 
hdmi5_core_audio_config(struct hdmi_core_data * core,struct hdmi_core_audio_config * cfg)650 static void hdmi5_core_audio_config(struct hdmi_core_data *core,
651 			struct hdmi_core_audio_config *cfg)
652 {
653 	void __iomem *base = core->base;
654 	u8 val;
655 
656 	/* Mute audio before configuring */
657 	REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCONF, 0xf, 7, 4);
658 
659 	/* Set the N parameter */
660 	REG_FLD_MOD(base, HDMI_CORE_AUD_N1, cfg->n, 7, 0);
661 	REG_FLD_MOD(base, HDMI_CORE_AUD_N2, cfg->n >> 8, 7, 0);
662 	REG_FLD_MOD(base, HDMI_CORE_AUD_N3, cfg->n >> 16, 3, 0);
663 
664 	/*
665 	 * CTS manual mode. Automatic mode is not supported when using audio
666 	 * parallel interface.
667 	 */
668 	REG_FLD_MOD(base, HDMI_CORE_AUD_CTS3, 1, 4, 4);
669 	REG_FLD_MOD(base, HDMI_CORE_AUD_CTS1, cfg->cts, 7, 0);
670 	REG_FLD_MOD(base, HDMI_CORE_AUD_CTS2, cfg->cts >> 8, 7, 0);
671 	REG_FLD_MOD(base, HDMI_CORE_AUD_CTS3, cfg->cts >> 16, 3, 0);
672 
673 	/* Layout of Audio Sample Packets: 2-channel or multichannels */
674 	if (cfg->layout == HDMI_AUDIO_LAYOUT_2CH)
675 		REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCONF, 0, 0, 0);
676 	else
677 		REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCONF, 1, 0, 0);
678 
679 	/* Configure IEC-609580 Validity bits */
680 	/* Channel 0 is valid */
681 	REG_FLD_MOD(base, HDMI_CORE_FC_AUDSV, 0, 0, 0);
682 	REG_FLD_MOD(base, HDMI_CORE_FC_AUDSV, 0, 4, 4);
683 
684 	if (cfg->layout == HDMI_AUDIO_LAYOUT_2CH)
685 		val = 1;
686 	else
687 		val = 0;
688 
689 	/* Channels 1, 2 setting */
690 	REG_FLD_MOD(base, HDMI_CORE_FC_AUDSV, val, 1, 1);
691 	REG_FLD_MOD(base, HDMI_CORE_FC_AUDSV, val, 5, 5);
692 	REG_FLD_MOD(base, HDMI_CORE_FC_AUDSV, val, 2, 2);
693 	REG_FLD_MOD(base, HDMI_CORE_FC_AUDSV, val, 6, 6);
694 	/* Channel 3 setting */
695 	if (cfg->layout == HDMI_AUDIO_LAYOUT_6CH)
696 		val = 1;
697 	REG_FLD_MOD(base, HDMI_CORE_FC_AUDSV, val, 3, 3);
698 	REG_FLD_MOD(base, HDMI_CORE_FC_AUDSV, val, 7, 7);
699 
700 	/* Configure IEC-60958 User bits */
701 	/* TODO: should be set by user. */
702 	REG_FLD_MOD(base, HDMI_CORE_FC_AUDSU, 0, 7, 0);
703 
704 	/* Configure IEC-60958 Channel Status word */
705 	/* CGMSA */
706 	val = cfg->iec60958_cfg->status[5] & IEC958_AES5_CON_CGMSA;
707 	REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCHNLS(0), val, 5, 4);
708 
709 	/* Copyright */
710 	val = (cfg->iec60958_cfg->status[0] &
711 			IEC958_AES0_CON_NOT_COPYRIGHT) >> 2;
712 	REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCHNLS(0), val, 0, 0);
713 
714 	/* Category */
715 	hdmi_write_reg(base, HDMI_CORE_FC_AUDSCHNLS(1),
716 		cfg->iec60958_cfg->status[1]);
717 
718 	/* PCM audio mode */
719 	val = (cfg->iec60958_cfg->status[0] & IEC958_AES0_CON_MODE) >> 6;
720 	REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCHNLS(2), val, 6, 4);
721 
722 	/* Source number */
723 	val = cfg->iec60958_cfg->status[2] & IEC958_AES2_CON_SOURCE;
724 	REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCHNLS(2), val, 3, 4);
725 
726 	/* Channel number right 0  */
727 	REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCHNLS(3), 2, 3, 0);
728 	/* Channel number right 1*/
729 	REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCHNLS(3), 4, 7, 4);
730 	/* Channel number right 2  */
731 	REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCHNLS(4), 6, 3, 0);
732 	/* Channel number right 3*/
733 	REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCHNLS(4), 8, 7, 4);
734 	/* Channel number left 0  */
735 	REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCHNLS(5), 1, 3, 0);
736 	/* Channel number left 1*/
737 	REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCHNLS(5), 3, 7, 4);
738 	/* Channel number left 2  */
739 	REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCHNLS(6), 5, 3, 0);
740 	/* Channel number left 3*/
741 	REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCHNLS(6), 7, 7, 4);
742 
743 	/* Clock accuracy and sample rate */
744 	hdmi_write_reg(base, HDMI_CORE_FC_AUDSCHNLS(7),
745 		cfg->iec60958_cfg->status[3]);
746 
747 	/* Original sample rate and word length */
748 	hdmi_write_reg(base, HDMI_CORE_FC_AUDSCHNLS(8),
749 		cfg->iec60958_cfg->status[4]);
750 
751 	/* Enable FIFO empty and full interrupts */
752 	REG_FLD_MOD(base, HDMI_CORE_AUD_INT, 3, 3, 2);
753 
754 	/* Configure GPA */
755 	/* select HBR/SPDIF interfaces */
756 	if (cfg->layout == HDMI_AUDIO_LAYOUT_2CH) {
757 		/* select HBR/SPDIF interfaces */
758 		REG_FLD_MOD(base, HDMI_CORE_AUD_CONF0, 0, 5, 5);
759 		/* enable two channels in GPA */
760 		REG_FLD_MOD(base, HDMI_CORE_AUD_GP_CONF1, 3, 7, 0);
761 	} else if (cfg->layout == HDMI_AUDIO_LAYOUT_6CH) {
762 		/* select HBR/SPDIF interfaces */
763 		REG_FLD_MOD(base, HDMI_CORE_AUD_CONF0, 0, 5, 5);
764 		/* enable six channels in GPA */
765 		REG_FLD_MOD(base, HDMI_CORE_AUD_GP_CONF1, 0x3F, 7, 0);
766 	} else {
767 		/* select HBR/SPDIF interfaces */
768 		REG_FLD_MOD(base, HDMI_CORE_AUD_CONF0, 0, 5, 5);
769 		/* enable eight channels in GPA */
770 		REG_FLD_MOD(base, HDMI_CORE_AUD_GP_CONF1, 0xFF, 7, 0);
771 	}
772 
773 	/* disable HBR */
774 	REG_FLD_MOD(base, HDMI_CORE_AUD_GP_CONF2, 0, 0, 0);
775 	/* enable PCUV */
776 	REG_FLD_MOD(base, HDMI_CORE_AUD_GP_CONF2, 1, 1, 1);
777 	/* enable GPA FIFO full and empty mask */
778 	REG_FLD_MOD(base, HDMI_CORE_AUD_GP_MASK, 3, 1, 0);
779 	/* set polarity of GPA FIFO empty interrupts */
780 	REG_FLD_MOD(base, HDMI_CORE_AUD_GP_POL, 1, 0, 0);
781 
782 	/* unmute audio */
783 	REG_FLD_MOD(base, HDMI_CORE_FC_AUDSCONF, 0, 7, 4);
784 }
785 
hdmi5_core_audio_infoframe_cfg(struct hdmi_core_data * core,struct snd_cea_861_aud_if * info_aud)786 static void hdmi5_core_audio_infoframe_cfg(struct hdmi_core_data *core,
787 	 struct snd_cea_861_aud_if *info_aud)
788 {
789 	void __iomem *base = core->base;
790 
791 	/* channel count and coding type fields in AUDICONF0 are swapped */
792 	hdmi_write_reg(base, HDMI_CORE_FC_AUDICONF0,
793 		(info_aud->db1_ct_cc & CEA861_AUDIO_INFOFRAME_DB1CC) << 4 |
794 		(info_aud->db1_ct_cc & CEA861_AUDIO_INFOFRAME_DB1CT) >> 4);
795 
796 	hdmi_write_reg(base, HDMI_CORE_FC_AUDICONF1, info_aud->db2_sf_ss);
797 	hdmi_write_reg(base, HDMI_CORE_FC_AUDICONF2, info_aud->db4_ca);
798 	hdmi_write_reg(base, HDMI_CORE_FC_AUDICONF3, info_aud->db5_dminh_lsv);
799 }
800 
hdmi5_audio_config(struct hdmi_core_data * core,struct hdmi_wp_data * wp,struct omap_dss_audio * audio,u32 pclk)801 int hdmi5_audio_config(struct hdmi_core_data *core, struct hdmi_wp_data *wp,
802 			struct omap_dss_audio *audio, u32 pclk)
803 {
804 	struct hdmi_audio_format audio_format;
805 	struct hdmi_audio_dma audio_dma;
806 	struct hdmi_core_audio_config core_cfg;
807 	int err, n, cts, channel_count;
808 	unsigned int fs_nr;
809 	bool word_length_16b = false;
810 
811 	if (!audio || !audio->iec || !audio->cea || !core)
812 		return -EINVAL;
813 
814 	core_cfg.iec60958_cfg = audio->iec;
815 
816 	if (!(audio->iec->status[4] & IEC958_AES4_CON_MAX_WORDLEN_24) &&
817 		(audio->iec->status[4] & IEC958_AES4_CON_WORDLEN_20_16))
818 			word_length_16b = true;
819 
820 	/* only 16-bit word length supported atm */
821 	if (!word_length_16b)
822 		return -EINVAL;
823 
824 	switch (audio->iec->status[3] & IEC958_AES3_CON_FS) {
825 	case IEC958_AES3_CON_FS_32000:
826 		fs_nr = 32000;
827 		break;
828 	case IEC958_AES3_CON_FS_44100:
829 		fs_nr = 44100;
830 		break;
831 	case IEC958_AES3_CON_FS_48000:
832 		fs_nr = 48000;
833 		break;
834 	case IEC958_AES3_CON_FS_88200:
835 		fs_nr = 88200;
836 		break;
837 	case IEC958_AES3_CON_FS_96000:
838 		fs_nr = 96000;
839 		break;
840 	case IEC958_AES3_CON_FS_176400:
841 		fs_nr = 176400;
842 		break;
843 	case IEC958_AES3_CON_FS_192000:
844 		fs_nr = 192000;
845 		break;
846 	default:
847 		return -EINVAL;
848 	}
849 
850 	err = hdmi_compute_acr(pclk, fs_nr, &n, &cts);
851 	core_cfg.n = n;
852 	core_cfg.cts = cts;
853 
854 	/* Audio channels settings */
855 	channel_count = (audio->cea->db1_ct_cc & CEA861_AUDIO_INFOFRAME_DB1CC)
856 				+ 1;
857 
858 	if (channel_count == 2)
859 		core_cfg.layout = HDMI_AUDIO_LAYOUT_2CH;
860 	else if (channel_count == 6)
861 		core_cfg.layout = HDMI_AUDIO_LAYOUT_6CH;
862 	else
863 		core_cfg.layout = HDMI_AUDIO_LAYOUT_8CH;
864 
865 	/* DMA settings */
866 	if (word_length_16b)
867 		audio_dma.transfer_size = 0x10;
868 	else
869 		audio_dma.transfer_size = 0x20;
870 	audio_dma.block_size = 0xC0;
871 	audio_dma.mode = HDMI_AUDIO_TRANSF_DMA;
872 	audio_dma.fifo_threshold = 0x20; /* in number of samples */
873 
874 	/* audio FIFO format settings for 16-bit samples*/
875 	audio_format.samples_per_word = HDMI_AUDIO_ONEWORD_TWOSAMPLES;
876 	audio_format.sample_size = HDMI_AUDIO_SAMPLE_16BITS;
877 	audio_format.justification = HDMI_AUDIO_JUSTIFY_LEFT;
878 
879 	/* only LPCM atm */
880 	audio_format.type = HDMI_AUDIO_TYPE_LPCM;
881 
882 	/* disable start/stop signals of IEC 60958 blocks */
883 	audio_format.en_sig_blk_strt_end = HDMI_AUDIO_BLOCK_SIG_STARTEND_ON;
884 
885 	/* configure DMA and audio FIFO format*/
886 	hdmi_wp_audio_config_dma(wp, &audio_dma);
887 	hdmi_wp_audio_config_format(wp, &audio_format);
888 
889 	/* configure the core */
890 	hdmi5_core_audio_config(core, &core_cfg);
891 
892 	/* configure CEA 861 audio infoframe */
893 	hdmi5_core_audio_infoframe_cfg(core, audio->cea);
894 
895 	return 0;
896 }
897 #endif
898 
hdmi5_core_init(struct platform_device * pdev,struct hdmi_core_data * core)899 int hdmi5_core_init(struct platform_device *pdev, struct hdmi_core_data *core)
900 {
901 	struct resource *res;
902 
903 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "core");
904 	if (!res) {
905 		DSSERR("can't get CORE IORESOURCE_MEM HDMI\n");
906 		return -EINVAL;
907 	}
908 
909 	core->base = devm_ioremap_resource(&pdev->dev, res);
910 	if (IS_ERR(core->base)) {
911 		DSSERR("can't ioremap HDMI core\n");
912 		return PTR_ERR(core->base);
913 	}
914 
915 	return 0;
916 }
917