Commit c690435e authored by Loic Poulain's avatar Loic Poulain Committed by Mauro Carvalho Chehab
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media: venus: core: Fix msm8996 frequency table 



In downstream driver, there are two frequency tables defined,
one for the encoder and one for the decoder:

/* Encoders /
<972000 490000000 0x55555555>, / 4k UHD @ 30 /
<489600 320000000 0x55555555>, / 1080p @ 60 /
<244800 150000000 0x55555555>, / 1080p @ 30 /
<108000 75000000 0x55555555>, / 720p @ 30 */

/* Decoders /
<1944000 490000000 0xffffffff>, / 4k UHD @ 60 /
< 972000 320000000 0xffffffff>, / 4k UHD @ 30 /
< 489600 150000000 0xffffffff>, / 1080p @ 60 /
< 244800 75000000 0xffffffff>; / 1080p @ 30 */

It shows that encoder always needs a higher clock than decoder.

In current venus driver, the unified frequency table is aligned
with the downstream decoder table which causes performance issues
in encoding scenarios. Fix that by aligning frequency table on
worst case (encoding).

Signed-off-by: default avatarLoic Poulain <loic.poulain@linaro.org>
Signed-off-by: default avatarStanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+samsung@kernel.org>
parent 503e5936

drivers/media/platform/qcom/venus/core.c

+5 −4
Original line number Diff line number Diff line
@@ -427,10 +427,11 @@ static const struct venus_resources msm8916_res = { 
};



static const struct freq_tbl msm8996_freq_table[] = {

	{ 1944000, 490000000 },	/* 4k UHD @ 60 */

	{  972000, 320000000 },	/* 4k UHD @ 30 */

	{  489600, 150000000 },	/* 1080p @ 60 */

	{  244800,  75000000 },	/* 1080p @ 30 */

	{ 1944000, 520000000 },	/* 4k UHD @ 60 (decode only) */

	{  972000, 520000000 },	/* 4k UHD @ 30 */

	{  489600, 346666667 },	/* 1080p @ 60 */

	{  244800, 150000000 },	/* 1080p @ 30 */

	{  108000,  75000000 },	/* 720p @ 30 */

};



static const struct reg_val msm8996_reg_preset[] = {