[PATCH v6 02/19] clk: tegra: Change CLK_M_DIV clocks to OSC_DIV clocks

Sowjanya Komatineni
2020-01-07T04:15:27Z

Tegra has no CLK_M_DIV2 and CLK_M_DIV4 clocks from CLK_M and instead
it has OSC_DIV2 and OSC_DIV4 clocks from OSC pads.

This patch removes CLK_M_DIV2 and CLK_M_DIV4 fixed clocks and adds
OSC_DIV2 and OSC_DIV4 fixed clocks with OSC as parent for Tegra30
through Tegra210 clock drivers.

Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
---
drivers/clk/tegra/clk-id.h | 4 ++--
drivers/clk/tegra/clk-tegra-fixed.c | 32 ++++++++++++++++----------------
drivers/clk/tegra/clk-tegra114.c | 19 ++++---------------
drivers/clk/tegra/clk-tegra124.c | 8 ++++----
drivers/clk/tegra/clk-tegra210.c | 8 ++++----
drivers/clk/tegra/clk-tegra30.c | 8 ++++----
6 files changed, 34 insertions(+), 45 deletions(-)

diff --git a/drivers/clk/tegra/clk-id.h b/drivers/clk/tegra/clk-id.h
index c4faebd32760..1bf21766d3e8 100644
--- a/drivers/clk/tegra/clk-id.h
+++ b/drivers/clk/tegra/clk-id.h
@@ -44,8 +44,8 @@ enum clk_id {
tegra_clk_clk72Mhz,
tegra_clk_clk72Mhz_8,
tegra_clk_clk_m,
- tegra_clk_clk_m_div2,
- tegra_clk_clk_m_div4,
+ tegra_clk_osc_div2,
+ tegra_clk_osc_div4,
tegra_clk_clk_out_1,
tegra_clk_clk_out_1_mux,
tegra_clk_clk_out_2,
diff --git a/drivers/clk/tegra/clk-tegra-fixed.c b/drivers/clk/tegra/clk-tegra-fixed.c
index 7c6c8abfcde6..8304f8cf9dd2 100644
--- a/drivers/clk/tegra/clk-tegra-fixed.c
+++ b/drivers/clk/tegra/clk-tegra-fixed.c
@@ -56,6 +56,22 @@ int __init tegra_osc_clk_init(void __iomem *clk_base, struct tegra_clk *clks,
0, 1, clk_m_div);
*dt_clk = clk;

+ /* osc_div2 */
+ dt_clk = tegra_lookup_dt_id(tegra_clk_osc_div2, clks);
+ if (dt_clk) {
+ clk = clk_register_fixed_factor(NULL, "osc_div2", "osc",
+ 0, 1, 2);
+ *dt_clk = clk;
+ }
+
+ /* osc_div4 */
+ dt_clk = tegra_lookup_dt_id(tegra_clk_osc_div4, clks);
+ if (dt_clk) {
+ clk = clk_register_fixed_factor(NULL, "osc_div4", "osc",
+ 0, 1, 4);
+ *dt_clk = clk;
+ }
+
/* pll_ref */
val = (val >> OSC_CTRL_PLL_REF_DIV_SHIFT) & 3;
pll_ref_div = 1 << val;
@@ -84,22 +100,6 @@ void __init tegra_fixed_clk_init(struct tegra_clk *tegra_clks)
clk = clk_register_fixed_rate(NULL, "clk_32k", NULL, 0, 32768);
*dt_clk = clk;
}
-
- /* clk_m_div2 */
- dt_clk = tegra_lookup_dt_id(tegra_clk_clk_m_div2, tegra_clks);
- if (dt_clk) {
- clk = clk_register_fixed_factor(NULL, "clk_m_div2", "clk_m",
- CLK_SET_RATE_PARENT, 1, 2);
- *dt_clk = clk;
- }
-
- /* clk_m_div4 */
- dt_clk = tegra_lookup_dt_id(tegra_clk_clk_m_div4, tegra_clks);
- if (dt_clk) {
- clk = clk_register_fixed_factor(NULL, "clk_m_div4", "clk_m",
- CLK_SET_RATE_PARENT, 1, 4);
- *dt_clk = clk;
- }
}

void tegra_clk_osc_resume(void __iomem *clk_base)
diff --git a/drivers/clk/tegra/clk-tegra114.c b/drivers/clk/tegra/clk-tegra114.c
index 4efcaaf51b3a..9d2ca387114c 100644
--- a/drivers/clk/tegra/clk-tegra114.c
+++ b/drivers/clk/tegra/clk-tegra114.c
@@ -735,8 +735,8 @@ static struct tegra_clk tegra114_clks[tegra_clk_max] __initdata = {
[tegra_clk_fuse_burn] = { .dt_id = TEGRA114_CLK_FUSE_BURN, .present = true },
[tegra_clk_clk_32k] = { .dt_id = TEGRA114_CLK_CLK_32K, .present = true },
[tegra_clk_clk_m] = { .dt_id = TEGRA114_CLK_CLK_M, .present = true },
- [tegra_clk_clk_m_div2] = { .dt_id = TEGRA114_CLK_CLK_M_DIV2, .present = true },
- [tegra_clk_clk_m_div4] = { .dt_id = TEGRA114_CLK_CLK_M_DIV4, .present = true },
+ [tegra_clk_osc_div2] = { .dt_id = TEGRA114_CLK_OSC_DIV2, .present = true },
+ [tegra_clk_osc_div4] = { .dt_id = TEGRA114_CLK_OSC_DIV4, .present = true },
[tegra_clk_pll_ref] = { .dt_id = TEGRA114_CLK_PLL_REF, .present = true },
[tegra_clk_pll_c] = { .dt_id = TEGRA114_CLK_PLL_C, .present = true },
[tegra_clk_pll_c_out1] = { .dt_id = TEGRA114_CLK_PLL_C_OUT1, .present = true },
@@ -815,8 +815,8 @@ static struct tegra_devclk devclks[] __initdata = {
{ .con_id = "clk_m", .dt_id = TEGRA114_CLK_CLK_M },
{ .con_id = "pll_ref", .dt_id = TEGRA114_CLK_PLL_REF },
{ .con_id = "clk_32k", .dt_id = TEGRA114_CLK_CLK_32K },
- { .con_id = "clk_m_div2", .dt_id = TEGRA114_CLK_CLK_M_DIV2 },
- { .con_id = "clk_m_div4", .dt_id = TEGRA114_CLK_CLK_M_DIV4 },
+ { .con_id = "osc_div2", .dt_id = TEGRA114_CLK_OSC_DIV2 },
+ { .con_id = "osc_div4", .dt_id = TEGRA114_CLK_OSC_DIV4 },
{ .con_id = "pll_c", .dt_id = TEGRA114_CLK_PLL_C },
{ .con_id = "pll_c_out1", .dt_id = TEGRA114_CLK_PLL_C_OUT1 },
{ .con_id = "pll_c2", .dt_id = TEGRA114_CLK_PLL_C2 },
@@ -900,17 +900,6 @@ static void __init tegra114_fixed_clk_init(void __iomem *clk_base)
/* clk_32k */
clk = clk_register_fixed_rate(NULL, "clk_32k", NULL, 0, 32768);
clks[TEGRA114_CLK_CLK_32K] = clk;
-
- /* clk_m_div2 */
- clk = clk_register_fixed_factor(NULL, "clk_m_div2", "clk_m",
- CLK_SET_RATE_PARENT, 1, 2);
- clks[TEGRA114_CLK_CLK_M_DIV2] = clk;
-
- /* clk_m_div4 */
- clk = clk_register_fixed_factor(NULL, "clk_m_div4", "clk_m",
- CLK_SET_RATE_PARENT, 1, 4);
- clks[TEGRA114_CLK_CLK_M_DIV4] = clk;
-
}

static void __init tegra114_pll_init(void __iomem *clk_base,
diff --git a/drivers/clk/tegra/clk-tegra124.c b/drivers/clk/tegra/clk-tegra124.c
index b3110d5b5a6c..15f42718f4cb 100644
--- a/drivers/clk/tegra/clk-tegra124.c
+++ b/drivers/clk/tegra/clk-tegra124.c
@@ -860,8 +860,8 @@ static struct tegra_clk tegra124_clks[tegra_clk_max] __initdata = {
[tegra_clk_fuse_burn] = { .dt_id = TEGRA124_CLK_FUSE_BURN, .present = true },
[tegra_clk_clk_32k] = { .dt_id = TEGRA124_CLK_CLK_32K, .present = true },
[tegra_clk_clk_m] = { .dt_id = TEGRA124_CLK_CLK_M, .present = true },
- [tegra_clk_clk_m_div2] = { .dt_id = TEGRA124_CLK_CLK_M_DIV2, .present = true },
- [tegra_clk_clk_m_div4] = { .dt_id = TEGRA124_CLK_CLK_M_DIV4, .present = true },
+ [tegra_clk_osc_div2] = { .dt_id = TEGRA124_CLK_OSC_DIV2, .present = true },
+ [tegra_clk_osc_div4] = { .dt_id = TEGRA124_CLK_OSC_DIV4, .present = true },
[tegra_clk_pll_ref] = { .dt_id = TEGRA124_CLK_PLL_REF, .present = true },
[tegra_clk_pll_c] = { .dt_id = TEGRA124_CLK_PLL_C, .present = true },
[tegra_clk_pll_c_out1] = { .dt_id = TEGRA124_CLK_PLL_C_OUT1, .present = true },
@@ -941,8 +941,8 @@ static struct tegra_devclk devclks[] __initdata = {
{ .con_id = "clk_m", .dt_id = TEGRA124_CLK_CLK_M },
{ .con_id = "pll_ref", .dt_id = TEGRA124_CLK_PLL_REF },
{ .con_id = "clk_32k", .dt_id = TEGRA124_CLK_CLK_32K },
- { .con_id = "clk_m_div2", .dt_id = TEGRA124_CLK_CLK_M_DIV2 },
- { .con_id = "clk_m_div4", .dt_id = TEGRA124_CLK_CLK_M_DIV4 },
+ { .con_id = "osc_div2", .dt_id = TEGRA124_CLK_OSC_DIV2 },
+ { .con_id = "osc_div4", .dt_id = TEGRA124_CLK_OSC_DIV4 },
{ .con_id = "pll_c", .dt_id = TEGRA124_CLK_PLL_C },
{ .con_id = "pll_c_out1", .dt_id = TEGRA124_CLK_PLL_C_OUT1 },
{ .con_id = "pll_c2", .dt_id = TEGRA124_CLK_PLL_C2 },
diff --git a/drivers/clk/tegra/clk-tegra210.c b/drivers/clk/tegra/clk-tegra210.c
index 762cd186f714..5687fcda620e 100644
--- a/drivers/clk/tegra/clk-tegra210.c
+++ b/drivers/clk/tegra/clk-tegra210.c
@@ -2371,8 +2371,8 @@ static struct tegra_clk tegra210_clks[tegra_clk_max] __initdata = {
[tegra_clk_fuse_burn] = { .dt_id = TEGRA210_CLK_FUSE_BURN, .present = true },
[tegra_clk_clk_32k] = { .dt_id = TEGRA210_CLK_CLK_32K, .present = true },
[tegra_clk_clk_m] = { .dt_id = TEGRA210_CLK_CLK_M, .present = true },
- [tegra_clk_clk_m_div2] = { .dt_id = TEGRA210_CLK_CLK_M_DIV2, .present = true },
- [tegra_clk_clk_m_div4] = { .dt_id = TEGRA210_CLK_CLK_M_DIV4, .present = true },
+ [tegra_clk_osc_div2] = { .dt_id = TEGRA210_CLK_OSC_DIV2, .present = true },
+ [tegra_clk_osc_div4] = { .dt_id = TEGRA210_CLK_OSC_DIV4, .present = true },
[tegra_clk_pll_ref] = { .dt_id = TEGRA210_CLK_PLL_REF, .present = true },
[tegra_clk_pll_c] = { .dt_id = TEGRA210_CLK_PLL_C, .present = true },
[tegra_clk_pll_c_out1] = { .dt_id = TEGRA210_CLK_PLL_C_OUT1, .present = true },
@@ -2497,8 +2497,8 @@ static struct tegra_devclk devclks[] __initdata = {
{ .con_id = "clk_m", .dt_id = TEGRA210_CLK_CLK_M },
{ .con_id = "pll_ref", .dt_id = TEGRA210_CLK_PLL_REF },
{ .con_id = "clk_32k", .dt_id = TEGRA210_CLK_CLK_32K },
- { .con_id = "clk_m_div2", .dt_id = TEGRA210_CLK_CLK_M_DIV2 },
- { .con_id = "clk_m_div4", .dt_id = TEGRA210_CLK_CLK_M_DIV4 },
+ { .con_id = "osc_div2", .dt_id = TEGRA210_CLK_OSC_DIV2 },
+ { .con_id = "osc_div4", .dt_id = TEGRA210_CLK_OSC_DIV4 },
{ .con_id = "pll_c", .dt_id = TEGRA210_CLK_PLL_C },
{ .con_id = "pll_c_out1", .dt_id = TEGRA210_CLK_PLL_C_OUT1 },
{ .con_id = "pll_c2", .dt_id = TEGRA210_CLK_PLL_C2 },
diff --git a/drivers/clk/tegra/clk-tegra30.c b/drivers/clk/tegra/clk-tegra30.c
index c8bc18e4d7e5..1322188edb72 100644
--- a/drivers/clk/tegra/clk-tegra30.c
+++ b/drivers/clk/tegra/clk-tegra30.c
@@ -581,8 +581,8 @@ static struct tegra_devclk devclks[] __initdata = {
{ .con_id = "twd", .dt_id = TEGRA30_CLK_TWD },
{ .con_id = "emc", .dt_id = TEGRA30_CLK_EMC },
{ .con_id = "clk_32k", .dt_id = TEGRA30_CLK_CLK_32K },
- { .con_id = "clk_m_div2", .dt_id = TEGRA30_CLK_CLK_M_DIV2 },
- { .con_id = "clk_m_div4", .dt_id = TEGRA30_CLK_CLK_M_DIV4 },
+ { .con_id = "osc_div2", .dt_id = TEGRA30_CLK_OSC_DIV2 },
+ { .con_id = "osc_div4", .dt_id = TEGRA30_CLK_OSC_DIV4 },
{ .con_id = "cml0", .dt_id = TEGRA30_CLK_CML0 },
{ .con_id = "cml1", .dt_id = TEGRA30_CLK_CML1 },
{ .con_id = "clk_m", .dt_id = TEGRA30_CLK_CLK_M },
@@ -683,8 +683,8 @@ static struct tegra_devclk devclks[] __initdata = {
static struct tegra_clk tegra30_clks[tegra_clk_max] __initdata = {
[tegra_clk_clk_32k] = { .dt_id = TEGRA30_CLK_CLK_32K, .present = true },
[tegra_clk_clk_m] = { .dt_id = TEGRA30_CLK_CLK_M, .present = true },
- [tegra_clk_clk_m_div2] = { .dt_id = TEGRA30_CLK_CLK_M_DIV2, .present = true },
- [tegra_clk_clk_m_div4] = { .dt_id = TEGRA30_CLK_CLK_M_DIV4, .present = true },
+ [tegra_clk_osc_div2] = { .dt_id = TEGRA30_CLK_OSC_DIV2, .present = true },
+ [tegra_clk_osc_div4] = { .dt_id = TEGRA30_CLK_OSC_DIV4, .present = true },
[tegra_clk_pll_ref] = { .dt_id = TEGRA30_CLK_PLL_REF, .present = true },
[tegra_clk_spdif_in_sync] = { .dt_id = TEGRA30_CLK_SPDIF_IN_SYNC, .present = true },
[tegra_clk_i2s0_sync] = { .dt_id = TEGRA30_CLK_I2S0_SYNC, .present = true },
--
2.7.4