The PWM IP on the RZ/V2M comes with 16 channels, but the ISP has
full control of channels 0 to 7, and channel 15, therefore Linux
is only allowed to use channels 8 to 14.
The PWM channel 15 shares apb clock and reset with PWM{8..14}.
The reset is deasserted by the bootloader/ISP.
Add PWM{8..14} clocks to CPG driver and mark apb clock as
critical clock, so that the apb clock will be always on.
Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
---
drivers/clk/renesas/r9a09g011-cpg.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/clk/renesas/r9a09g011-cpg.c b/drivers/clk/renesas/r9a09g011-cpg.c
index fbef1b35d254..536725762c61 100644
--- a/drivers/clk/renesas/r9a09g011-cpg.c
+++ b/drivers/clk/renesas/r9a09g011-cpg.c
@@ -136,6 +136,14 @@ static const struct rzg2l_mod_clk r9a09g011_mod_clks[] __initconst = {
DEF_MOD("iic_pclk1", R9A09G011_IIC_PCLK1, CLK_SEL_E, 0x424, 12),
DEF_MOD("wdt0_pclk", R9A09G011_WDT0_PCLK, CLK_SEL_E, 0x428, 12),
DEF_MOD("wdt0_clk", R9A09G011_WDT0_CLK, CLK_MAIN, 0x428, 13),
+ DEF_MOD("pwm8_15_pclk", R9A09G011_CPERI_GRPF_PCLK, CLK_SEL_E, 0x434, 0),
+ DEF_MOD("pwm8_clk", R9A09G011_PWM8_CLK, CLK_MAIN, 0x434, 4),
+ DEF_MOD("pwm9_clk", R9A09G011_PWM9_CLK, CLK_MAIN, 0x434, 5),
+ DEF_MOD("pwm10_clk", R9A09G011_PWM10_CLK, CLK_MAIN, 0x434, 6),
+ DEF_MOD("pwm11_clk", R9A09G011_PWM11_CLK, CLK_MAIN, 0x434, 7),
+ DEF_MOD("pwm12_clk", R9A09G011_PWM12_CLK, CLK_MAIN, 0x434, 8),
+ DEF_MOD("pwm13_clk", R9A09G011_PWM13_CLK, CLK_MAIN, 0x434, 9),
+ DEF_MOD("pwm14_clk", R9A09G011_PWM14_CLK, CLK_MAIN, 0x434, 10),
DEF_MOD("urt_pclk", R9A09G011_URT_PCLK, CLK_SEL_E, 0x438, 4),
DEF_MOD("urt0_clk", R9A09G011_URT0_CLK, CLK_SEL_W0, 0x438, 5),
DEF_MOD("ca53", R9A09G011_CA53_CLK, CLK_DIV_A, 0x448, 0),
@@ -152,6 +160,7 @@ static const struct rzg2l_reset r9a09g011_resets[] = {
static const unsigned int r9a09g011_crit_mod_clks[] __initconst = {
MOD_CLK_BASE + R9A09G011_CA53_CLK,
+ MOD_CLK_BASE + R9A09G011_CPERI_GRPF_PCLK,
MOD_CLK_BASE + R9A09G011_GIC_CLK,
MOD_CLK_BASE + R9A09G011_SYC_CNT_CLK,
MOD_CLK_BASE + R9A09G011_URT_PCLK,
--
2.25.1
