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media: ti-vpe: cal: move code to separate functions

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To make csi2_wait_for_phy() more readable, move code to separate
functions.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Benoit Parrot <bparrot@ti.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil-cisco@xs4all.nl: delete empty line before } ]
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Tomi Valkeinen 2020-03-25 13:15:07 +01:00 committed by Mauro Carvalho Chehab
parent cd1a746b9b
commit cbdda28ab9
1 changed files with 24 additions and 12 deletions
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36
drivers/media/platform/ti-vpe/cal.c
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@ -823,20 +823,10 @@ static void csi2_phy_init(struct cal_ctx *ctx)
csi2_cio_power(ctx, true); csi2_cio_power(ctx, true);
} }
static void csi2_wait_for_phy(struct cal_ctx *ctx) static void csi2_wait_complexio_reset(struct cal_ctx *ctx)
{ {
int i; int i;
/* Steps
* 2. Wait for completion of reset
* Note if the external sensor is not sending byte clock,
* the reset will timeout
* 4.Force FORCERXMODE
* G. Wait for all enabled lane to reach stop state
* H. Disable pull down using pad control
*/
/* 2. Wait for reset completion */
for (i = 0; i < 250; i++) { for (i = 0; i < 250; i++) {
if (reg_read_field(ctx->dev, if (reg_read_field(ctx->dev,
CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port), CAL_CSI2_COMPLEXIO_CFG(ctx->csi2_port),
@ -850,8 +840,12 @@ static void csi2_wait_for_phy(struct cal_ctx *ctx)
CAL_CSI2_COMPLEXIO_CFG_RESET_DONE_MASK) != CAL_CSI2_COMPLEXIO_CFG_RESET_DONE_MASK) !=
CAL_CSI2_COMPLEXIO_CFG_RESET_DONE_RESETCOMPLETED) CAL_CSI2_COMPLEXIO_CFG_RESET_DONE_RESETCOMPLETED)
ctx_err(ctx, "Timeout waiting for Complex IO reset done\n"); ctx_err(ctx, "Timeout waiting for Complex IO reset done\n");
}
static void csi2_wait_stop_state(struct cal_ctx *ctx)
{
int i;
/* 4. G. Wait for all enabled lane to reach stop state */
for (i = 0; i < 10; i++) { for (i = 0; i < 10; i++) {
if (reg_read_field(ctx->dev, if (reg_read_field(ctx->dev,
CAL_CSI2_TIMING(ctx->csi2_port), CAL_CSI2_TIMING(ctx->csi2_port),
@ -863,6 +857,24 @@ static void csi2_wait_for_phy(struct cal_ctx *ctx)
if (reg_read_field(ctx->dev, CAL_CSI2_TIMING(ctx->csi2_port), if (reg_read_field(ctx->dev, CAL_CSI2_TIMING(ctx->csi2_port),
CAL_CSI2_TIMING_FORCE_RX_MODE_IO1_MASK) != 0) CAL_CSI2_TIMING_FORCE_RX_MODE_IO1_MASK) != 0)
ctx_err(ctx, "Timeout waiting for stop state\n"); ctx_err(ctx, "Timeout waiting for stop state\n");
}
static void csi2_wait_for_phy(struct cal_ctx *ctx)
{
/* Steps
* 2. Wait for completion of reset
* Note if the external sensor is not sending byte clock,
* the reset will timeout
* 4.Force FORCERXMODE
* G. Wait for all enabled lane to reach stop state
* H. Disable pull down using pad control
*/
/* 2. Wait for reset completion */
csi2_wait_complexio_reset(ctx);
/* 4. G. Wait for all enabled lane to reach stop state */
csi2_wait_stop_state(ctx);
ctx_dbg(1, ctx, "CSI2_%d_REG1 = 0x%08x (Bit(31,28) should be set!)\n", ctx_dbg(1, ctx, "CSI2_%d_REG1 = 0x%08x (Bit(31,28) should be set!)\n",
(ctx->csi2_port - 1), reg_read(ctx->cc, CAL_CSI2_PHY_REG1)); (ctx->csi2_port - 1), reg_read(ctx->cc, CAL_CSI2_PHY_REG1));