From: Niklas Söderlund Date: Tue, 10 Dec 2024 15:54:00 +0000 (+0100) Subject: media: rcar-csi2: Update D-PHY startup on V4M X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=f6470be571362bd0ea19a597226933b61fa6e313;p=users%2Fjedix%2Flinux-maple.git media: rcar-csi2: Update D-PHY startup on V4M The latest datasheet (Rev.0.70) updates the D-PHY start-up sequence for D-PHY operation. Unfortunately the datasheet do not add any additional documentation on the magic values. This have been tested together with the MAX96724 available on the single board test platform and it works as expected. Signed-off-by: Niklas Söderlund Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/platform/renesas/rcar-csi2.c b/drivers/media/platform/renesas/rcar-csi2.c index 8a0b6a68e194..0a53dd47d7bf 100644 --- a/drivers/media/platform/renesas/rcar-csi2.c +++ b/drivers/media/platform/renesas/rcar-csi2.c @@ -1406,15 +1406,15 @@ static int rcsi2_init_common_v4m(struct rcar_csi2 *priv, unsigned int mbps) static const struct phtw_value step2[] = { { .data = 0x00, .code = 0x00 }, { .data = 0x80, .code = 0xe0 }, - { .data = 0x01, .code = 0xe1 }, + { .data = 0x31, .code = 0xe1 }, { .data = 0x06, .code = 0x00 }, - { .data = 0x0f, .code = 0x11 }, + { .data = 0x11, .code = 0x11 }, { .data = 0x08, .code = 0x00 }, - { .data = 0x0f, .code = 0x11 }, + { .data = 0x11, .code = 0x11 }, { .data = 0x0a, .code = 0x00 }, - { .data = 0x0f, .code = 0x11 }, + { .data = 0x11, .code = 0x11 }, { .data = 0x0c, .code = 0x00 }, - { .data = 0x0f, .code = 0x11 }, + { .data = 0x11, .code = 0x11 }, { .data = 0x01, .code = 0x00 }, { .data = 0x31, .code = 0xaa }, { .data = 0x05, .code = 0x00 }, @@ -1427,6 +1427,11 @@ static int rcsi2_init_common_v4m(struct rcar_csi2 *priv, unsigned int mbps) { .data = 0x05, .code = 0x09 }, }; + static const struct phtw_value step3[] = { + { .data = 0x01, .code = 0x00 }, + { .data = 0x06, .code = 0xab }, + }; + if (priv->info->hsfreqrange) { ret = rcsi2_set_phypll(priv, mbps); if (ret) @@ -1457,7 +1462,7 @@ static int rcsi2_init_common_v4m(struct rcar_csi2 *priv, unsigned int mbps) return ret; } - return ret; + return rcsi2_phtw_write_array(priv, step3, ARRAY_SIZE(step3)); } static int rcsi2_start_receiver_v4m(struct rcar_csi2 *priv,