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authorGeorgi Vlaev <g-vlaev@ti.com>2022-04-15 22:03:43 +0300
committerStephen Boyd <sboyd@kernel.org>2022-04-22 19:04:47 -0700
commitbae71de51b8901372d7ed5c6b89d32282db7e9ed (patch)
tree380f57857f6518c45e46bae375ff47ddb0813e0c /drivers/clk/keystone
parent4ce2b909dcf578c79faf1e47589f59731e331b14 (diff)
clk: keystone: syscon-clk: Add support for AM62 epwm-tbclk
AM62 has 3 instances of EPWM modules. Each EPWM module has an EPWM TBCLKEN module input used to individually enable or disable its EPWM time-base clock. The EPWM time-base clock enable input comes from the CTRLMMR_EPWM_TB_CLKEN register bits 0 to 2 in CTRL_MMR0 module (6.1.1.4.1.48 [1]). This is virtually the same setup as in AM64 but with 3 instead of 9 clock providers on AM62. Update the driver with the 3 instances of clocks associated to a new compatible: "ti,am62-epwm-tbclk". [1] https://www.ti.com/lit/pdf/spruiv7 Signed-off-by: Georgi Vlaev <g-vlaev@ti.com> Tested-by: Vignesh Raghavendra <vigneshr@ti.com> Link: https://lore.kernel.org/r/20220415190343.6284-3-g-vlaev@ti.com Reviewed-by: Nishanth Menon <nm@ti.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk/keystone')
-rw-r--r--drivers/clk/keystone/syscon-clk.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/clk/keystone/syscon-clk.c b/drivers/clk/keystone/syscon-clk.c
index aae1a4076281..19198325b909 100644
--- a/drivers/clk/keystone/syscon-clk.c
+++ b/drivers/clk/keystone/syscon-clk.c
@@ -162,6 +162,13 @@ static const struct ti_syscon_gate_clk_data am64_clk_data[] = {
{ /* Sentinel */ },
};
+static const struct ti_syscon_gate_clk_data am62_clk_data[] = {
+ TI_SYSCON_CLK_GATE("epwm_tbclk0", 0x0, 0),
+ TI_SYSCON_CLK_GATE("epwm_tbclk1", 0x0, 1),
+ TI_SYSCON_CLK_GATE("epwm_tbclk2", 0x0, 2),
+ { /* Sentinel */ },
+};
+
static const struct of_device_id ti_syscon_gate_clk_ids[] = {
{
.compatible = "ti,am654-ehrpwm-tbclk",
@@ -171,6 +178,10 @@ static const struct of_device_id ti_syscon_gate_clk_ids[] = {
.compatible = "ti,am64-epwm-tbclk",
.data = &am64_clk_data,
},
+ {
+ .compatible = "ti,am62-epwm-tbclk",
+ .data = &am62_clk_data,
+ },
{ }
};
MODULE_DEVICE_TABLE(of, ti_syscon_gate_clk_ids);