Re: [Freedreno] [PATCH 2/4] drm/msm/dp: Store each subblock in the io region
From: abhinavk
Date: Fri May 28 2021 - 19:15:23 EST
On 2021-05-10 21:20, Bjorn Andersson wrote:
Not all platforms has DP_P0 at offset 0x1000 from the beginning of the
DP block. So move the offsets into dss_io_data, to make it possible in
the next patch to specify alternative offsets and sizes of these
segments.
Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
Reviewed-by: Abhinav Kumar <abhinavk@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/msm/dp/dp_catalog.c | 57 ++++++++---------------------
drivers/gpu/drm/msm/dp/dp_parser.c | 10 +++++
drivers/gpu/drm/msm/dp/dp_parser.h | 8 ++++
3 files changed, 33 insertions(+), 42 deletions(-)
diff --git a/drivers/gpu/drm/msm/dp/dp_catalog.c
b/drivers/gpu/drm/msm/dp/dp_catalog.c
index 2eb37ee48e42..a0449a2867e4 100644
--- a/drivers/gpu/drm/msm/dp/dp_catalog.c
+++ b/drivers/gpu/drm/msm/dp/dp_catalog.c
@@ -24,15 +24,6 @@
#define DP_INTERRUPT_STATUS_ACK_SHIFT 1
#define DP_INTERRUPT_STATUS_MASK_SHIFT 2
-#define MSM_DP_CONTROLLER_AHB_OFFSET 0x0000
-#define MSM_DP_CONTROLLER_AHB_SIZE 0x0200
-#define MSM_DP_CONTROLLER_AUX_OFFSET 0x0200
-#define MSM_DP_CONTROLLER_AUX_SIZE 0x0200
-#define MSM_DP_CONTROLLER_LINK_OFFSET 0x0400
-#define MSM_DP_CONTROLLER_LINK_SIZE 0x0C00
-#define MSM_DP_CONTROLLER_P0_OFFSET 0x1000
-#define MSM_DP_CONTROLLER_P0_SIZE 0x0400
-
#define DP_INTERRUPT_STATUS1 \
(DP_INTR_AUX_I2C_DONE| \
DP_INTR_WRONG_ADDR | DP_INTR_TIMEOUT | \
@@ -64,75 +55,67 @@ struct dp_catalog_private {
static inline u32 dp_read_aux(struct dp_catalog_private *catalog, u32
offset)
{
- offset += MSM_DP_CONTROLLER_AUX_OFFSET;
- return readl_relaxed(catalog->io->dp_controller.base + offset);
+ return readl_relaxed(catalog->io->dp_controller.aux + offset);
}
static inline void dp_write_aux(struct dp_catalog_private *catalog,
u32 offset, u32 data)
{
- offset += MSM_DP_CONTROLLER_AUX_OFFSET;
/*
* To make sure aux reg writes happens before any other operation,
* this function uses writel() instread of writel_relaxed()
*/
- writel(data, catalog->io->dp_controller.base + offset);
+ writel(data, catalog->io->dp_controller.aux + offset);
}
static inline u32 dp_read_ahb(struct dp_catalog_private *catalog, u32
offset)
{
- offset += MSM_DP_CONTROLLER_AHB_OFFSET;
- return readl_relaxed(catalog->io->dp_controller.base + offset);
+ return readl_relaxed(catalog->io->dp_controller.ahb + offset);
}
static inline void dp_write_ahb(struct dp_catalog_private *catalog,
u32 offset, u32 data)
{
- offset += MSM_DP_CONTROLLER_AHB_OFFSET;
/*
* To make sure phy reg writes happens before any other operation,
* this function uses writel() instread of writel_relaxed()
*/
- writel(data, catalog->io->dp_controller.base + offset);
+ writel(data, catalog->io->dp_controller.ahb + offset);
}
static inline void dp_write_p0(struct dp_catalog_private *catalog,
u32 offset, u32 data)
{
- offset += MSM_DP_CONTROLLER_P0_OFFSET;
/*
* To make sure interface reg writes happens before any other
operation,
* this function uses writel() instread of writel_relaxed()
*/
- writel(data, catalog->io->dp_controller.base + offset);
+ writel(data, catalog->io->dp_controller.p0 + offset);
}
static inline u32 dp_read_p0(struct dp_catalog_private *catalog,
u32 offset)
{
- offset += MSM_DP_CONTROLLER_P0_OFFSET;
/*
* To make sure interface reg writes happens before any other
operation,
* this function uses writel() instread of writel_relaxed()
*/
- return readl_relaxed(catalog->io->dp_controller.base + offset);
+ return readl_relaxed(catalog->io->dp_controller.p0 + offset);
}
static inline u32 dp_read_link(struct dp_catalog_private *catalog, u32
offset)
{
- offset += MSM_DP_CONTROLLER_LINK_OFFSET;
- return readl_relaxed(catalog->io->dp_controller.base + offset);
+ return readl_relaxed(catalog->io->dp_controller.link + offset);
}
static inline void dp_write_link(struct dp_catalog_private *catalog,
u32 offset, u32 data)
{
- offset += MSM_DP_CONTROLLER_LINK_OFFSET;
/*
* To make sure link reg writes happens before any other operation,
* this function uses writel() instread of writel_relaxed()
*/
- writel(data, catalog->io->dp_controller.base + offset);
+ writel(data, catalog->io->dp_controller.link + offset);
}
/* aux related catalog functions */
@@ -267,29 +250,21 @@ static void dump_regs(void __iomem *base, int
len)
void dp_catalog_dump_regs(struct dp_catalog *dp_catalog)
{
- u32 offset, len;
struct dp_catalog_private *catalog = container_of(dp_catalog,
struct dp_catalog_private, dp_catalog);
+ struct dss_io_data *io = &catalog->io->dp_controller;
pr_info("AHB regs\n");
- offset = MSM_DP_CONTROLLER_AHB_OFFSET;
- len = MSM_DP_CONTROLLER_AHB_SIZE;
- dump_regs(catalog->io->dp_controller.base + offset, len);
+ dump_regs(io->ahb, io->ahb_len);
pr_info("AUXCLK regs\n");
- offset = MSM_DP_CONTROLLER_AUX_OFFSET;
- len = MSM_DP_CONTROLLER_AUX_SIZE;
- dump_regs(catalog->io->dp_controller.base + offset, len);
+ dump_regs(io->aux, io->aux_len);
pr_info("LCLK regs\n");
- offset = MSM_DP_CONTROLLER_LINK_OFFSET;
- len = MSM_DP_CONTROLLER_LINK_SIZE;
- dump_regs(catalog->io->dp_controller.base + offset, len);
+ dump_regs(io->link, io->link_len);
pr_info("P0CLK regs\n");
- offset = MSM_DP_CONTROLLER_P0_OFFSET;
- len = MSM_DP_CONTROLLER_P0_SIZE;
- dump_regs(catalog->io->dp_controller.base + offset, len);
+ dump_regs(io->p0, io->p0_len);
}
int dp_catalog_aux_get_irq(struct dp_catalog *dp_catalog)
@@ -454,8 +429,7 @@ int dp_catalog_ctrl_set_pattern(struct dp_catalog
*dp_catalog,
bit = BIT(pattern - 1) << DP_MAINLINK_READY_LINK_TRAINING_SHIFT;
/* Poll for mainlink ready status */
- ret = readx_poll_timeout(readl, catalog->io->dp_controller.base +
- MSM_DP_CONTROLLER_LINK_OFFSET +
+ ret = readx_poll_timeout(readl, catalog->io->dp_controller.link +
REG_DP_MAINLINK_READY,
data, data & bit,
POLLING_SLEEP_US, POLLING_TIMEOUT_US);
@@ -502,8 +476,7 @@ bool dp_catalog_ctrl_mainlink_ready(struct
dp_catalog *dp_catalog)
struct dp_catalog_private, dp_catalog);
/* Poll for mainlink ready status */
- ret = readl_poll_timeout(catalog->io->dp_controller.base +
- MSM_DP_CONTROLLER_LINK_OFFSET +
+ ret = readl_poll_timeout(catalog->io->dp_controller.link +
REG_DP_MAINLINK_READY,
data, data & DP_MAINLINK_READY_FOR_VIDEO,
POLLING_SLEEP_US, POLLING_TIMEOUT_US);
diff --git a/drivers/gpu/drm/msm/dp/dp_parser.c
b/drivers/gpu/drm/msm/dp/dp_parser.c
index 0519dd3ac3c3..51ec85b4803b 100644
--- a/drivers/gpu/drm/msm/dp/dp_parser.c
+++ b/drivers/gpu/drm/msm/dp/dp_parser.c
@@ -250,6 +250,7 @@ static int dp_parser_clock(struct dp_parser
*parser)
static int dp_parser_parse(struct dp_parser *parser)
{
+ struct dss_io_data *io = &parser->io.dp_controller;
int rc = 0;
if (!parser) {
@@ -275,6 +276,15 @@ static int dp_parser_parse(struct dp_parser
*parser)
*/
parser->regulator_cfg = &sdm845_dp_reg_cfg;
+ io->ahb = io->base + 0x0;
+ io->ahb_len = 0x200;
+ io->aux = io->base + 0x200;
+ io->aux_len = 0x200;
+ io->link = io->base + 0x400;
+ io->link_len = 0x600;
+ io->p0 = io->base + 0x1000;
+ io->p0_len = 0x400;
+
return 0;
}
diff --git a/drivers/gpu/drm/msm/dp/dp_parser.h
b/drivers/gpu/drm/msm/dp/dp_parser.h
index 34b49628bbaf..ff4774109c63 100644
--- a/drivers/gpu/drm/msm/dp/dp_parser.h
+++ b/drivers/gpu/drm/msm/dp/dp_parser.h
@@ -28,6 +28,14 @@ enum dp_pm_type {
struct dss_io_data {
u32 len;
void __iomem *base;
+ void __iomem *ahb;
+ size_t ahb_len;
+ void __iomem *aux;
+ size_t aux_len;
+ void __iomem *link;
+ size_t link_len;
+ void __iomem *p0;
+ size_t p0_len;
};
static inline const char *dp_parser_pm_name(enum dp_pm_type module)