[PATCH 5.10.y-cip 05/24] clk: renesas: r9a07g044: Add mux and divider for G clock


Biju Das
 

commit 7ef9c45a23a9071dee23ca1a769c53ec2cdc07c0 upstream.

G clock is sourced from PLL3 and PLL6. The output of the mux is
connected to divider.

This patch adds a mux and divider for getting different rates from
this clock sources.

Signed-off-by: Biju Das <biju.das.jz@...>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...>
Link: https://lore.kernel.org/r/20211203115154.31864-3-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@...>
Signed-off-by: Biju Das <biju.das.jz@...>
---
drivers/clk/renesas/r9a07g044-cpg.c | 6 ++++++
drivers/clk/renesas/rzg2l-cpg.h | 4 ++++
2 files changed, 10 insertions(+)

diff --git a/drivers/clk/renesas/r9a07g044-cpg.c b/drivers/clk/renesas/r9a07g044-cpg.c
index 0962f25cd3f0..85132b6c97b7 100644
--- a/drivers/clk/renesas/r9a07g044-cpg.c
+++ b/drivers/clk/renesas/r9a07g044-cpg.c
@@ -50,6 +50,7 @@ enum clk_ids {
CLK_PLL2_SDHI_266,
CLK_SD0_DIV4,
CLK_SD1_DIV4,
+ CLK_SEL_GPU2,

/* Module Clocks */
MOD_CLK_BASE,
@@ -77,6 +78,7 @@ static const struct clk_div_table dtable_1_32[] = {
static const char * const sel_pll3_3[] = { ".pll3_533", ".pll3_400" };
static const char * const sel_pll6_2[] = { ".pll6_250", ".pll5_250" };
static const char * const sel_shdi[] = { ".clk_533", ".clk_400", ".clk_266" };
+static const char * const sel_gpu2[] = { ".pll6", ".pll3_div2_2" };

static const struct cpg_core_clk r9a07g044_core_clks[] __initconst = {
/* External Clock Inputs */
@@ -116,6 +118,8 @@ static const struct cpg_core_clk r9a07g044_core_clks[] __initconst = {

DEF_FIXED(".pll5_250", CLK_PLL5_250, CLK_PLL5_FOUT3, 1, 2),
DEF_FIXED(".pll6_250", CLK_PLL6_250, CLK_PLL6, 1, 2),
+ DEF_MUX(".sel_gpu2", CLK_SEL_GPU2, SEL_GPU2,
+ sel_gpu2, ARRAY_SIZE(sel_gpu2), 0, CLK_MUX_READ_ONLY),

/* Core output clk */
DEF_DIV("I", R9A07G044_CLK_I, CLK_PLL1, DIVPL1A, dtable_1_8,
@@ -141,6 +145,8 @@ static const struct cpg_core_clk r9a07g044_core_clks[] __initconst = {
sel_shdi, ARRAY_SIZE(sel_shdi)),
DEF_FIXED("SD0_DIV4", CLK_SD0_DIV4, R9A07G044_CLK_SD0, 1, 4),
DEF_FIXED("SD1_DIV4", CLK_SD1_DIV4, R9A07G044_CLK_SD1, 1, 4),
+ DEF_DIV("G", R9A07G044_CLK_G, CLK_SEL_GPU2, DIVGPU, dtable_1_8,
+ CLK_DIVIDER_HIWORD_MASK),
};

static struct rzg2l_mod_clk r9a07g044_mod_clks[] = {
diff --git a/drivers/clk/renesas/rzg2l-cpg.h b/drivers/clk/renesas/rzg2l-cpg.h
index fce4a8f35410..5729d102034b 100644
--- a/drivers/clk/renesas/rzg2l-cpg.h
+++ b/drivers/clk/renesas/rzg2l-cpg.h
@@ -12,9 +12,11 @@
#define CPG_PL1_DDIV (0x200)
#define CPG_PL2_DDIV (0x204)
#define CPG_PL3A_DDIV (0x208)
+#define CPG_PL6_DDIV (0x210)
#define CPG_PL2SDHI_DSEL (0x218)
#define CPG_CLKSTATUS (0x280)
#define CPG_PL3_SSEL (0x408)
+#define CPG_PL6_SSEL (0x414)
#define CPG_PL6_ETH_SSEL (0x418)

#define CPG_CLKSTATUS_SELSDHI0_STS BIT(28)
@@ -35,12 +37,14 @@
#define DIVPL3A DDIV_PACK(CPG_PL3A_DDIV, 0, 3)
#define DIVPL3B DDIV_PACK(CPG_PL3A_DDIV, 4, 3)
#define DIVPL3C DDIV_PACK(CPG_PL3A_DDIV, 8, 3)
+#define DIVGPU DDIV_PACK(CPG_PL6_DDIV, 0, 2)

#define SEL_PLL_PACK(offset, bitpos, size) \
(((offset) << 20) | ((bitpos) << 12) | ((size) << 8))

#define SEL_PLL3_3 SEL_PLL_PACK(CPG_PL3_SSEL, 8, 1)
#define SEL_PLL6_2 SEL_PLL_PACK(CPG_PL6_ETH_SSEL, 0, 1)
+#define SEL_GPU2 SEL_PLL_PACK(CPG_PL6_SSEL, 12, 1)

#define SEL_SDHI0 DDIV_PACK(CPG_PL2SDHI_DSEL, 0, 2)
#define SEL_SDHI1 DDIV_PACK(CPG_PL2SDHI_DSEL, 4, 2)
--
2.25.1

Join cip-dev@lists.cip-project.org to automatically receive all group messages.