This is a note to let you know that I've just added the patch titled
clk: ti: Fix missing omap4 mcbsp functional clock and aliases
to the 6.5-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
clk-ti-fix-missing-omap4-mcbsp-functional-clock-and-.patch
and it can be found in the queue-6.5 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit ee73007bfdcfe85432af4d890118a676b0331fbd
Author: Tony Lindgren <tony@xxxxxxxxxxx>
Date: Wed Oct 11 10:15:56 2023 +0300
clk: ti: Fix missing omap4 mcbsp functional clock and aliases
[ Upstream commit cc2d819dd7df94a72bde7b9b9331a6535084092d ]
We are using a wrong mcbsp functional clock. The interconnect target module
driver provided clock for mcbsp is not same as the mcbsp functional clock
known as the gfclk main_clk. The mcbsp functional clocks for mcbsp should
have been added before we dropped the legacy platform data.
Additionally we are also missing the clock aliases for the clocks used by
the audio driver if reparenting is needed. This causes audio driver errors
like "CLKS: could not clk_get() prcm_fck" for mcbsp as reported by Andreas.
The mcbsp clock aliases too should have been added before we dropped the
legacy platform data.
Let's add the clocks and aliases with a single patch to fix the issue.
Fixes: 349355ce3a05 ("ARM: OMAP2+: Drop legacy platform data for omap4 mcbsp")
Reported-by: Andreas Kemnade <andreas@xxxxxxxxxxxx>
Reported-by: Péter Ujfalusi <peter.ujfalusi@xxxxxxxxx>
Acked-by: Stephen Boyd <sboyd@xxxxxxxxxx>
Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/arm/boot/dts/ti/omap/omap4-l4-abe.dtsi b/arch/arm/boot/dts/ti/omap/omap4-l4-abe.dtsi
index 7ae8b620515c5..59f546a278f87 100644
--- a/arch/arm/boot/dts/ti/omap/omap4-l4-abe.dtsi
+++ b/arch/arm/boot/dts/ti/omap/omap4-l4-abe.dtsi
@@ -109,6 +109,8 @@ mcbsp1: mcbsp@0 {
reg = <0x0 0xff>, /* MPU private access */
<0x49022000 0xff>; /* L3 Interconnect */
reg-names = "mpu", "dma";
+ clocks = <&abe_clkctrl OMAP4_MCBSP1_CLKCTRL 24>;
+ clock-names = "fck";
interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "common";
ti,buffer-size = <128>;
@@ -142,6 +144,8 @@ mcbsp2: mcbsp@0 {
reg = <0x0 0xff>, /* MPU private access */
<0x49024000 0xff>; /* L3 Interconnect */
reg-names = "mpu", "dma";
+ clocks = <&abe_clkctrl OMAP4_MCBSP2_CLKCTRL 24>;
+ clock-names = "fck";
interrupts = <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "common";
ti,buffer-size = <128>;
@@ -175,6 +179,8 @@ mcbsp3: mcbsp@0 {
reg = <0x0 0xff>, /* MPU private access */
<0x49026000 0xff>; /* L3 Interconnect */
reg-names = "mpu", "dma";
+ clocks = <&abe_clkctrl OMAP4_MCBSP3_CLKCTRL 24>;
+ clock-names = "fck";
interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "common";
ti,buffer-size = <128>;
diff --git a/arch/arm/boot/dts/ti/omap/omap4-l4.dtsi b/arch/arm/boot/dts/ti/omap/omap4-l4.dtsi
index 46b8f9efd4131..3fcef3080eaec 100644
--- a/arch/arm/boot/dts/ti/omap/omap4-l4.dtsi
+++ b/arch/arm/boot/dts/ti/omap/omap4-l4.dtsi
@@ -2043,6 +2043,8 @@ mcbsp4: mcbsp@0 {
compatible = "ti,omap4-mcbsp";
reg = <0x0 0xff>; /* L4 Interconnect */
reg-names = "mpu";
+ clocks = <&l4_per_clkctrl OMAP4_MCBSP4_CLKCTRL 24>;
+ clock-names = "fck";
interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "common";
ti,buffer-size = <128>;
diff --git a/drivers/clk/ti/clk-44xx.c b/drivers/clk/ti/clk-44xx.c
index 868bc7af21b0b..9b2824ed785b9 100644
--- a/drivers/clk/ti/clk-44xx.c
+++ b/drivers/clk/ti/clk-44xx.c
@@ -749,9 +749,14 @@ static struct ti_dt_clk omap44xx_clks[] = {
DT_CLK(NULL, "mcbsp1_sync_mux_ck", "abe-clkctrl:0028:26"),
DT_CLK(NULL, "mcbsp2_sync_mux_ck", "abe-clkctrl:0030:26"),
DT_CLK(NULL, "mcbsp3_sync_mux_ck", "abe-clkctrl:0038:26"),
+ DT_CLK("40122000.mcbsp", "prcm_fck", "abe-clkctrl:0028:26"),
+ DT_CLK("40124000.mcbsp", "prcm_fck", "abe-clkctrl:0030:26"),
+ DT_CLK("40126000.mcbsp", "prcm_fck", "abe-clkctrl:0038:26"),
DT_CLK(NULL, "mcbsp4_sync_mux_ck", "l4-per-clkctrl:00c0:26"),
+ DT_CLK("48096000.mcbsp", "prcm_fck", "l4-per-clkctrl:00c0:26"),
DT_CLK(NULL, "ocp2scp_usb_phy_phy_48m", "l3-init-clkctrl:00c0:8"),
DT_CLK(NULL, "otg_60m_gfclk", "l3-init-clkctrl:0040:24"),
+ DT_CLK(NULL, "pad_fck", "pad_clks_ck"),
DT_CLK(NULL, "per_mcbsp4_gfclk", "l4-per-clkctrl:00c0:24"),
DT_CLK(NULL, "pmd_stm_clock_mux_ck", "emu-sys-clkctrl:0000:20"),
DT_CLK(NULL, "pmd_trace_clk_mux_ck", "emu-sys-clkctrl:0000:22"),
