Hi Shaik,
On 06.05.2014 18:26, Shaik Ameer Basha wrote:
This patch corrects some child-parent clock relationships,
and updates the clocks according to the latest datasheet.
Signed-off-by: Rahul Sharma <rahul.sharma@xxxxxxxxxxx>
Signed-off-by: Shaik Ameer Basha <shaik.ameer@xxxxxxxxxxx>
---
drivers/clk/samsung/clk-exynos5420.c | 58 ++++++++++++++++++++++----------
include/dt-bindings/clock/exynos5420.h | 3 +-
2 files changed, 43 insertions(+), 18 deletions(-)
diff --git a/drivers/clk/samsung/clk-exynos5420.c b/drivers/clk/samsung/clk-exynos5420.c
index 5bc4798..9750659 100644
--- a/drivers/clk/samsung/clk-exynos5420.c
+++ b/drivers/clk/samsung/clk-exynos5420.c
@@ -61,7 +61,8 @@
#define SRC_TOP10 0x10280
#define SRC_TOP11 0x10284
#define SRC_TOP12 0x10288
-#define SRC_MASK_DISP10 0x1032c
+#define SRC_MASK_TOP2 0x10308
+#define SRC_MASK_DISP10 0x1032c
#define SRC_MASK_FSYS 0x10340
#define SRC_MASK_PERIC0 0x10350
#define SRC_MASK_PERIC1 0x10354
@@ -100,6 +101,7 @@
#define GATE_TOP_SCLK_MAU 0x1083c
#define GATE_TOP_SCLK_FSYS 0x10840
#define GATE_TOP_SCLK_PERIC 0x10850
+#define TOP_SPARE2 0x10b08
#define BPLL_LOCK 0x20010
#define BPLL_CON0 0x20110
#define SRC_CDREX 0x20200
@@ -146,6 +148,7 @@ static unsigned long exynos5420_clk_regs[] __initdata = {
SRC_TOP10,
SRC_TOP11,
SRC_TOP12,
+ SRC_MASK_TOP2,
SRC_MASK_DISP10,
SRC_MASK_FSYS,
SRC_MASK_PERIC0,
@@ -186,6 +189,7 @@ static unsigned long exynos5420_clk_regs[] __initdata = {
GATE_TOP_SCLK_MAU,
GATE_TOP_SCLK_FSYS,
GATE_TOP_SCLK_PERIC,
+ TOP_SPARE2,
SRC_CDREX,
SRC_KFC,
DIV_KFC0,
@@ -252,6 +256,7 @@ PNAME(mout_group3_p) = {"mout_sclk_rpll", "mout_sclk_spll"};
PNAME(mout_group4_p) = {"mout_sclk_ipll", "mout_sclk_dpll", "mout_sclk_mpll"};
PNAME(mout_group5_p) = {"mout_sclk_vpll", "mout_sclk_dpll"};
+PNAME(mout_fimd1_final_p) = {"mout_fimd1", "mout_fimd1_opt"};
PNAME(mout_sw_aclk66_p) = {"dout_aclk66", "mout_sclk_spll"};
PNAME(mout_aclk66_peric_p) = { "fin_pll", "mout_sw_aclk66" };
@@ -271,7 +276,7 @@ PNAME(mout_sw_aclk333_432_isp_p) = {"dout_aclk333_432_isp", "mout_sclk_spll"};
PNAME(mout_user_aclk333_432_isp_p) = {"fin_pll", "mout_sw_aclk333_432_isp"};
PNAME(mout_sw_aclk200_p) = {"dout_aclk200", "mout_sclk_spll"};
-PNAME(mout_aclk200_disp1_p) = {"fin_pll", "mout_sw_aclk200"};
+PNAME(mout_user_aclk200_disp1_p) = {"fin_pll", "mout_sw_aclk200"};
PNAME(mout_sw_aclk400_mscl_p) = {"dout_aclk400_mscl", "mout_sclk_spll"};
PNAME(mout_user_aclk400_mscl_p) = {"fin_pll", "mout_sw_aclk400_mscl"};
@@ -293,7 +298,9 @@ PNAME(mout_sw_aclk300_gscl_p) = {"dout_aclk300_gscl", "mout_sclk_spll"};
PNAME(mout_user_aclk300_gscl_p) = {"fin_pll", "mout_sw_aclk300_gscl"};
PNAME(mout_sw_aclk300_disp1_p) = {"dout_aclk300_disp1", "mout_sclk_spll"};
+PNAME(mout_sw_aclk400_disp1_p) = {"dout_aclk400_disp1", "mout_sclk_spll"};
PNAME(mout_user_aclk300_disp1_p) = {"fin_pll", "mout_sw_aclk300_disp1"};
+PNAME(mout_user_aclk400_disp1_p) = {"fin_pll", "mout_sw_aclk400_disp1"};
PNAME(mout_sw_aclk300_jpeg_p) = {"dout_aclk300_jpeg", "mout_sclk_spll"};
PNAME(mout_user_aclk300_jpeg_p) = {"fin_pll", "mout_sw_aclk300_jpeg"};
@@ -368,6 +375,7 @@ static struct samsung_mux_clock exynos5420_mux_clks[] __initdata = {
MUX(0, "mout_aclk166", mout_group1_p, SRC_TOP1, 24, 2),
MUX(0, "mout_aclk333", mout_group1_p, SRC_TOP1, 28, 2),
+ MUX(0, "mout_aclk400_disp1", mout_group1_p, SRC_TOP2, 4, 2),
MUX(0, "mout_aclk333_g2d", mout_group1_p, SRC_TOP2, 8, 2),
MUX(0, "mout_aclk266_g2d", mout_group1_p, SRC_TOP2, 12, 2),
MUX(0, "mout_aclk_g3d", mout_group5_p, SRC_TOP2, 16, 1),
@@ -379,7 +387,8 @@ static struct samsung_mux_clock exynos5420_mux_clks[] __initdata = {
SRC_TOP3, 0, 1),
MUX(0, "mout_user_aclk400_mscl", mout_user_aclk400_mscl_p,
SRC_TOP3, 4, 1),
- MUX(0, "mout_aclk200_disp1", mout_aclk200_disp1_p, SRC_TOP3, 8, 1),
+ MUX(0, "mout_user_aclk200_disp1", mout_user_aclk200_disp1_p,
+ SRC_TOP3, 8, 1),
MUX(0, "mout_user_aclk200_fsys2", mout_user_aclk200_fsys2_p,
SRC_TOP3, 12, 1),
MUX(0, "mout_user_aclk200_fsys", mout_user_aclk200_fsys_p,
@@ -398,6 +407,8 @@ static struct samsung_mux_clock exynos5420_mux_clks[] __initdata = {
MUX(0, "mout_user_aclk166", mout_user_aclk166_p, SRC_TOP4, 24, 1),
MUX(0, "mout_user_aclk333", mout_user_aclk333_p, SRC_TOP4, 28, 1),
+ MUX(0, "mout_user_aclk400_disp1", mout_user_aclk400_disp1_p,
+ SRC_TOP5, 0, 1),
MUX(0, "mout_aclk66_psgen", mout_aclk66_peric_p, SRC_TOP5, 4, 1),
MUX(0, "mout_user_aclk333_g2d", mout_user_aclk333_g2d_p, SRC_TOP5,
8, 1),
@@ -442,6 +453,8 @@ static struct samsung_mux_clock exynos5420_mux_clks[] __initdata = {
MUX(0, "mout_sw_aclk166", mout_sw_aclk166_p, SRC_TOP11, 24, 1),
MUX(0, "mout_sw_aclk333", mout_sw_aclk333_p, SRC_TOP11, 28, 1),
+ MUX(0, "mout_sw_aclk400_disp1", mout_sw_aclk400_disp1_p,
+ SRC_TOP12, 4, 1),
MUX(0, "mout_sw_aclk333_g2d", mout_sw_aclk333_g2d_p,
SRC_TOP12, 8, 1),
MUX(0, "mout_sw_aclk266_g2d", mout_sw_aclk266_g2d_p,
@@ -460,6 +473,10 @@ static struct samsung_mux_clock exynos5420_mux_clks[] __initdata = {
MUX(0, "mout_dp1", mout_group2_p, SRC_DISP10, 20, 3),
MUX(0, "mout_pixel", mout_group2_p, SRC_DISP10, 24, 3),
MUX(CLK_MOUT_HDMI, "mout_hdmi", mout_hdmi_p, SRC_DISP10, 28, 1),
+ MUX_F(0, "mout_fimd1_opt", mout_group2_p,
+ SRC_DISP10, 8, 3, CLK_SET_RATE_PARENT, 0),
+ MUX_F(0, "mout_fimd1_final", mout_fimd1_final_p,
+ TOP_SPARE2, 8, 1, CLK_SET_RATE_PARENT, 0),
the CLK_SET_RATE_PARENT flag doesn't seem right here as it would cause
reconfiguration of a lot of shared clocks if set_rate called on this
clock. Is there any reason to have it here?
In general this flag should be set for simple clock paths without nodes
inside shared across multiple other clock paths to don't let one driver
step on another with calls to clk_set_rate().
/* MAU Block */
MUX(0, "mout_maudio0", mout_maudio0_p, SRC_MAU, 28, 3),
@@ -523,15 +540,16 @@ static struct samsung_div_clock exynos5420_div_clks[] __initdata = {
DIV(0, "dout_aclk266_g2d", "mout_aclk266_g2d", DIV_TOP2, 12, 3),
DIV(0, "dout_aclk_g3d", "mout_aclk_g3d", DIV_TOP2, 16, 3),
DIV(0, "dout_aclk300_jpeg", "mout_aclk300_jpeg", DIV_TOP2, 20, 3),
- DIV_A(0, "dout_aclk300_disp1", "mout_aclk300_disp1",
- DIV_TOP2, 24, 3, "aclk300_disp1"),
+ DIV(0, "dout_aclk300_disp1", "mout_aclk300_disp1", DIV_TOP2, 24, 3),
DIV(0, "dout_aclk300_gscl", "mout_aclk300_gscl", DIV_TOP2, 28, 3),
/* DISP1 Block */
- DIV(0, "dout_fimd1", "mout_fimd1", DIV_DISP10, 0, 4),
+ DIV(0, "dout_fimd1", "mout_fimd1_final", DIV_DISP10, 0, 4),
DIV(0, "dout_mipi1", "mout_mipi1", DIV_DISP10, 16, 8),
DIV(0, "dout_dp1", "mout_dp1", DIV_DISP10, 24, 4),
DIV(CLK_DOUT_PIXEL, "dout_hdmi_pixel", "mout_pixel", DIV_DISP10, 28, 4),
+ DIV(0, "dout_disp1_blk", "aclk200_disp1", DIV2_RATIO0, 16, 2),
+ DIV(0, "dout_aclk400_disp1", "mout_aclk400_disp1", DIV_TOP2, 4, 3),
/* Audio Block */
DIV(0, "dout_maudio0", "mout_maudio0", DIV_MAU, 20, 4),
@@ -640,6 +658,11 @@ static struct samsung_gate_clock exynos5420_gate_clks[] __initdata = {
GATE_BUS_TOP, 16, 0, 0),
GATE(CLK_ACLK400_MSCL, "aclk400_mscl", "mout_user_aclk400_mscl",
GATE_BUS_TOP, 17, CLK_IGNORE_UNUSED, 0),
+ GATE(CLK_ACLK200_DISP1, "aclk200_disp1", "mout_user_aclk200_disp1",
+ GATE_BUS_TOP, 18, CLK_IGNORE_UNUSED, 0),
+
+ GATE(CLK_ACLK300_DISP1, "aclk300_disp1", "mout_user_aclk300_disp1",
+ SRC_MASK_TOP2, 24, CLK_IGNORE_UNUSED, 0),
The CLK_IGNORE_UNUSED flags would suggest that you don't need to define
this clock here at all and use their parents directly for child clocks
of these intermediate clocks defined here. In general, this is related
to the mis-use of GATE_BUS_* registers in this driver.
/* sclk */
GATE(CLK_SCLK_UART0, "sclk_uart0", "dout_uart0",
@@ -689,15 +712,15 @@ static struct samsung_gate_clock exynos5420_gate_clks[] __initdata = {
/* Display */
GATE(CLK_SCLK_FIMD1, "sclk_fimd1", "dout_fimd1",
- GATE_TOP_SCLK_DISP1, 0, CLK_SET_RATE_PARENT, 0),
+ GATE_TOP_SCLK_DISP1, 0, CLK_SET_RATE_PARENT, 0),
GATE(CLK_SCLK_MIPI1, "sclk_mipi1", "dout_mipi1",
- GATE_TOP_SCLK_DISP1, 3, CLK_SET_RATE_PARENT, 0),
+ GATE_TOP_SCLK_DISP1, 3, CLK_SET_RATE_PARENT, 0),
GATE(CLK_SCLK_HDMI, "sclk_hdmi", "mout_hdmi",
- GATE_TOP_SCLK_DISP1, 9, CLK_SET_RATE_PARENT, 0),
+ GATE_TOP_SCLK_DISP1, 9, CLK_SET_RATE_PARENT, 0),
CLK_SET_RATE_PARENT for a clock with a mux as the parent doesn't seem
right to me. Is there any specific reason to have it here?
GATE(CLK_SCLK_PIXEL, "sclk_pixel", "dout_hdmi_pixel",
- GATE_TOP_SCLK_DISP1, 10, CLK_SET_RATE_PARENT, 0),
+ GATE_TOP_SCLK_DISP1, 10, CLK_SET_RATE_PARENT, 0),
GATE(CLK_SCLK_DP1, "sclk_dp1", "dout_dp1",
- GATE_TOP_SCLK_DISP1, 20, CLK_SET_RATE_PARENT, 0),
+ GATE_TOP_SCLK_DISP1, 20, CLK_SET_RATE_PARENT, 0),
/* Maudio Block */
GATE(CLK_SCLK_MAUDIO0, "sclk_maudio0", "dout_maudio0",
@@ -826,10 +849,14 @@ static struct samsung_gate_clock exynos5420_gate_clks[] __initdata = {
GATE(CLK_FIMD1, "fimd1", "aclk300_disp1", GATE_IP_DISP1, 0, 0, 0),
GATE(CLK_DSIM1, "dsim1", "aclk200_disp1", GATE_IP_DISP1, 3, 0, 0),
GATE(CLK_DP1, "dp1", "aclk200_disp1", GATE_IP_DISP1, 4, 0, 0),
- GATE(CLK_MIXER, "mixer", "aclk166", GATE_IP_DISP1, 5, 0, 0),
+ GATE(CLK_MIXER, "mixer", "aclk200_disp1", GATE_IP_DISP1, 5, 0, 0),
GATE(CLK_HDMI, "hdmi", "aclk200_disp1", GATE_IP_DISP1, 6, 0, 0),
- GATE(CLK_SMMU_FIMD1, "smmu_fimd1", "aclk300_disp1", GATE_IP_DISP1, 8, 0,
- 0),
+ GATE(CLK_SMMU_FIMD1M0, "smmu_fimd1m0", "dout_disp1_blk",
+ GATE_IP_DISP1, 7, CLK_SET_RATE_PARENT, 0),
+ GATE(CLK_SMMU_FIMD1M1, "smmu_fimd1m1", "dout_disp1_blk",
+ GATE_IP_DISP1, 8, CLK_SET_RATE_PARENT, 0),
CLK_SET_RATE_PARENT for these two definitely is not right, since these
clocks have a shared divider block as their parents.
Best regards,
Tomasz
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