From: Tero Kristo t-kristo@ti.com
[ Upstream commit dc6dbd51009fc412729c307161f442c0a08618f4 ]
Right now, trying to use RTC purely with the ti-sysc / clkctrl framework fails to enable the RTC module properly. Based on experimentation, this appears to be because RTC is sourced from the clkdiv32k optional clock. TRM is not very clear on this topic, but fix the RTC to use the proper source clock nevertheless.
Reported-by: Tony Lindgren tony@atomide.com Signed-off-by: Tero Kristo t-kristo@ti.com Link: https://lkml.kernel.org/r/20200424152301.4018-1-t-kristo@ti.com Acked-by: Tony Lindgren tony@atomide.com Signed-off-by: Stephen Boyd sboyd@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/clk/ti/clk-33xx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/ti/clk-33xx.c b/drivers/clk/ti/clk-33xx.c index a360d3109555..73f567d8022f 100644 --- a/drivers/clk/ti/clk-33xx.c +++ b/drivers/clk/ti/clk-33xx.c @@ -212,7 +212,7 @@ static const struct omap_clkctrl_reg_data am3_mpu_clkctrl_regs[] __initconst = { };
static const struct omap_clkctrl_reg_data am3_l4_rtc_clkctrl_regs[] __initconst = { - { AM3_L4_RTC_RTC_CLKCTRL, NULL, CLKF_SW_SUP, "clk_32768_ck" }, + { AM3_L4_RTC_RTC_CLKCTRL, NULL, CLKF_SW_SUP, "clk-24mhz-clkctrl:0000:0" }, { 0 }, };