* [PATCH 1/2] ARM: dts: imx7ulp: remove mipi pll clock node
@ 2019-08-23 0:37 Fancy Fang
2019-08-23 0:37 ` [PATCH 2/2] clk: imx7ulp: remove IMX7ULP_CLK_MIPI_PLL clock Fancy Fang
2019-09-11 6:42 ` [PATCH 1/2] ARM: dts: imx7ulp: remove mipi pll clock node Shawn Guo
0 siblings, 2 replies; 4+ messages in thread
From: Fancy Fang @ 2019-08-23 0:37 UTC (permalink / raw)
To: mturquette@baylibre.com, sboyd@kernel.org, shawnguo@kernel.org,
s.hauer@pengutronix.de, Abel Vesa, kernel@pengutronix.de
Cc: Aisheng Dong, Anson Huang, Jana Build,
linux-kernel@vger.kernel.org, LnxRevLi, dl-linux-imx,
festevam@gmail.com, linux-clk@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
According to the IMX7ULP reference manual, the mipi pll
clock comes from the MIPI PHY PLL output. So it should
not be defined as a fixed clock. So remove this clock
node and all the references to it.
Signed-off-by: Fancy Fang <chen.fang@nxp.com>
---
arch/arm/boot/dts/imx7ulp.dtsi | 17 ++++-------------
1 file changed, 4 insertions(+), 13 deletions(-)
diff --git a/arch/arm/boot/dts/imx7ulp.dtsi b/arch/arm/boot/dts/imx7ulp.dtsi
index 6859a3a83750..a7e4004bf428 100644
--- a/arch/arm/boot/dts/imx7ulp.dtsi
+++ b/arch/arm/boot/dts/imx7ulp.dtsi
@@ -87,13 +87,6 @@
#clock-cells = <0>;
};
- mpll: clock-mpll {
- compatible = "fixed-clock";
- clock-frequency = <480000000>;
- clock-output-names = "mpll";
- #clock-cells = <0>;
- };
-
ahbbridge0: bus@40000000 {
compatible = "simple-bus";
#address-cells = <1>;
@@ -258,9 +251,9 @@
compatible = "fsl,imx7ulp-scg1";
reg = <0x403e0000 0x10000>;
clocks = <&rosc>, <&sosc>, <&sirc>,
- <&firc>, <&upll>, <&mpll>;
+ <&firc>, <&upll>;
clock-names = "rosc", "sosc", "sirc",
- "firc", "upll", "mpll";
+ "firc", "upll";
#clock-cells = <1>;
};
@@ -276,13 +269,12 @@
<&scg1 IMX7ULP_CLK_APLL_PFD0>,
<&scg1 IMX7ULP_CLK_UPLL>,
<&scg1 IMX7ULP_CLK_SOSC_BUS_CLK>,
- <&scg1 IMX7ULP_CLK_MIPI_PLL>,
<&scg1 IMX7ULP_CLK_FIRC_BUS_CLK>,
<&scg1 IMX7ULP_CLK_ROSC>,
<&scg1 IMX7ULP_CLK_SPLL_BUS_CLK>;
clock-names = "nic1_bus_clk", "nic1_clk", "ddr_clk",
"apll_pfd2", "apll_pfd1", "apll_pfd0",
- "upll", "sosc_bus_clk", "mpll",
+ "upll", "sosc_bus_clk",
"firc_bus_clk", "rosc", "spll_bus_clk";
assigned-clocks = <&pcc2 IMX7ULP_CLK_LPTPM5>;
assigned-clock-parents = <&scg1 IMX7ULP_CLK_SOSC_BUS_CLK>;
@@ -309,13 +301,12 @@
<&scg1 IMX7ULP_CLK_APLL_PFD0>,
<&scg1 IMX7ULP_CLK_UPLL>,
<&scg1 IMX7ULP_CLK_SOSC_BUS_CLK>,
- <&scg1 IMX7ULP_CLK_MIPI_PLL>,
<&scg1 IMX7ULP_CLK_FIRC_BUS_CLK>,
<&scg1 IMX7ULP_CLK_ROSC>,
<&scg1 IMX7ULP_CLK_SPLL_BUS_CLK>;
clock-names = "nic1_bus_clk", "nic1_clk", "ddr_clk",
"apll_pfd2", "apll_pfd1", "apll_pfd0",
- "upll", "sosc_bus_clk", "mpll",
+ "upll", "sosc_bus_clk",
"firc_bus_clk", "rosc", "spll_bus_clk";
};
};
--
2.17.1
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^ permalink raw reply related [flat|nested] 4+ messages in thread* [PATCH 2/2] clk: imx7ulp: remove IMX7ULP_CLK_MIPI_PLL clock
2019-08-23 0:37 [PATCH 1/2] ARM: dts: imx7ulp: remove mipi pll clock node Fancy Fang
@ 2019-08-23 0:37 ` Fancy Fang
2019-09-11 6:45 ` Shawn Guo
2019-09-11 6:42 ` [PATCH 1/2] ARM: dts: imx7ulp: remove mipi pll clock node Shawn Guo
1 sibling, 1 reply; 4+ messages in thread
From: Fancy Fang @ 2019-08-23 0:37 UTC (permalink / raw)
To: mturquette@baylibre.com, sboyd@kernel.org, shawnguo@kernel.org,
s.hauer@pengutronix.de, Abel Vesa, kernel@pengutronix.de
Cc: Aisheng Dong, Anson Huang, Jana Build,
linux-kernel@vger.kernel.org, LnxRevLi, dl-linux-imx,
festevam@gmail.com, linux-clk@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
The mipi pll clock comes from the MIPI PHY PLL output, so
it should not be a fixed clock.
MIPI PHY PLL is in the MIPI DSI space, and it is used as
the bit clock for transferring the pixel data out and its
output clock is configured according to the display mode.
So it should be used only for MIPI DSI and not be exported
out for other usages.
Signed-off-by: Fancy Fang <chen.fang@nxp.com>
---
.../devicetree/bindings/clock/imx7ulp-clock.txt | 1 -
drivers/clk/imx/clk-imx7ulp.c | 3 +--
include/dt-bindings/clock/imx7ulp-clock.h | 15 +++++++--------
3 files changed, 8 insertions(+), 11 deletions(-)
diff --git a/Documentation/devicetree/bindings/clock/imx7ulp-clock.txt b/Documentation/devicetree/bindings/clock/imx7ulp-clock.txt
index a4f8cd478f92..93d89adb7afe 100644
--- a/Documentation/devicetree/bindings/clock/imx7ulp-clock.txt
+++ b/Documentation/devicetree/bindings/clock/imx7ulp-clock.txt
@@ -82,7 +82,6 @@ pcc2: pcc2@403f0000 {
<&scg1 IMX7ULP_CLK_APLL_PFD0>,
<&scg1 IMX7ULP_CLK_UPLL>,
<&scg1 IMX7ULP_CLK_SOSC_BUS_CLK>,
- <&scg1 IMX7ULP_CLK_MIPI_PLL>,
<&scg1 IMX7ULP_CLK_FIRC_BUS_CLK>,
<&scg1 IMX7ULP_CLK_ROSC>,
<&scg1 IMX7ULP_CLK_SPLL_BUS_CLK>;
diff --git a/drivers/clk/imx/clk-imx7ulp.c b/drivers/clk/imx/clk-imx7ulp.c
index 2022d9bead91..459b120b71d5 100644
--- a/drivers/clk/imx/clk-imx7ulp.c
+++ b/drivers/clk/imx/clk-imx7ulp.c
@@ -28,7 +28,7 @@ static const char * const scs_sels[] = { "dummy", "sosc", "sirc", "firc", "dumm
static const char * const ddr_sels[] = { "apll_pfd_sel", "upll", };
static const char * const nic_sels[] = { "firc", "ddr_clk", };
static const char * const periph_plat_sels[] = { "dummy", "nic1_bus_clk", "nic1_clk", "ddr_clk", "apll_pfd2", "apll_pfd1", "apll_pfd0", "upll", };
-static const char * const periph_bus_sels[] = { "dummy", "sosc_bus_clk", "mpll", "firc_bus_clk", "rosc", "nic1_bus_clk", "nic1_clk", "spll_bus_clk", };
+static const char * const periph_bus_sels[] = { "dummy", "sosc_bus_clk", "dummy", "firc_bus_clk", "rosc", "nic1_bus_clk", "nic1_clk", "spll_bus_clk", };
static const char * const arm_sels[] = { "divcore", "dummy", "dummy", "hsrun_divcore", };
/* used by sosc/sirc/firc/ddr/spll/apll dividers */
@@ -75,7 +75,6 @@ static void __init imx7ulp_clk_scg1_init(struct device_node *np)
clks[IMX7ULP_CLK_SOSC] = imx_obtain_fixed_clk_hw(np, "sosc");
clks[IMX7ULP_CLK_SIRC] = imx_obtain_fixed_clk_hw(np, "sirc");
clks[IMX7ULP_CLK_FIRC] = imx_obtain_fixed_clk_hw(np, "firc");
- clks[IMX7ULP_CLK_MIPI_PLL] = imx_obtain_fixed_clk_hw(np, "mpll");
clks[IMX7ULP_CLK_UPLL] = imx_obtain_fixed_clk_hw(np, "upll");
/* SCG1 */
diff --git a/include/dt-bindings/clock/imx7ulp-clock.h b/include/dt-bindings/clock/imx7ulp-clock.h
index 6f66f9005c81..f8d34fb4378f 100644
--- a/include/dt-bindings/clock/imx7ulp-clock.h
+++ b/include/dt-bindings/clock/imx7ulp-clock.h
@@ -49,15 +49,14 @@
#define IMX7ULP_CLK_NIC1_DIV 36
#define IMX7ULP_CLK_NIC1_BUS_DIV 37
#define IMX7ULP_CLK_NIC1_EXT_DIV 38
-#define IMX7ULP_CLK_MIPI_PLL 39
-#define IMX7ULP_CLK_SIRC 40
-#define IMX7ULP_CLK_SOSC_BUS_CLK 41
-#define IMX7ULP_CLK_FIRC_BUS_CLK 42
-#define IMX7ULP_CLK_SPLL_BUS_CLK 43
-#define IMX7ULP_CLK_HSRUN_SYS_SEL 44
-#define IMX7ULP_CLK_HSRUN_CORE_DIV 45
+#define IMX7ULP_CLK_SIRC 39
+#define IMX7ULP_CLK_SOSC_BUS_CLK 40
+#define IMX7ULP_CLK_FIRC_BUS_CLK 41
+#define IMX7ULP_CLK_SPLL_BUS_CLK 42
+#define IMX7ULP_CLK_HSRUN_SYS_SEL 43
+#define IMX7ULP_CLK_HSRUN_CORE_DIV 44
-#define IMX7ULP_CLK_SCG1_END 46
+#define IMX7ULP_CLK_SCG1_END 45
/* PCC2 */
#define IMX7ULP_CLK_DMA1 0
--
2.17.1
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^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH 2/2] clk: imx7ulp: remove IMX7ULP_CLK_MIPI_PLL clock
2019-08-23 0:37 ` [PATCH 2/2] clk: imx7ulp: remove IMX7ULP_CLK_MIPI_PLL clock Fancy Fang
@ 2019-09-11 6:45 ` Shawn Guo
0 siblings, 0 replies; 4+ messages in thread
From: Shawn Guo @ 2019-09-11 6:45 UTC (permalink / raw)
To: Fancy Fang
Cc: Aisheng Dong, Abel Vesa, Anson Huang, sboyd@kernel.org,
mturquette@baylibre.com, Jana Build, linux-clk@vger.kernel.org,
linux-kernel@vger.kernel.org, LnxRevLi, dl-linux-imx,
kernel@pengutronix.de, festevam@gmail.com, s.hauer@pengutronix.de,
linux-arm-kernel@lists.infradead.org
On Fri, Aug 23, 2019 at 12:37:35AM +0000, Fancy Fang wrote:
> The mipi pll clock comes from the MIPI PHY PLL output, so
> it should not be a fixed clock.
>
> MIPI PHY PLL is in the MIPI DSI space, and it is used as
> the bit clock for transferring the pixel data out and its
> output clock is configured according to the display mode.
>
> So it should be used only for MIPI DSI and not be exported
> out for other usages.
>
> Signed-off-by: Fancy Fang <chen.fang@nxp.com>
> ---
> .../devicetree/bindings/clock/imx7ulp-clock.txt | 1 -
> drivers/clk/imx/clk-imx7ulp.c | 3 +--
> include/dt-bindings/clock/imx7ulp-clock.h | 15 +++++++--------
> 3 files changed, 8 insertions(+), 11 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/clock/imx7ulp-clock.txt b/Documentation/devicetree/bindings/clock/imx7ulp-clock.txt
> index a4f8cd478f92..93d89adb7afe 100644
> --- a/Documentation/devicetree/bindings/clock/imx7ulp-clock.txt
> +++ b/Documentation/devicetree/bindings/clock/imx7ulp-clock.txt
> @@ -82,7 +82,6 @@ pcc2: pcc2@403f0000 {
> <&scg1 IMX7ULP_CLK_APLL_PFD0>,
> <&scg1 IMX7ULP_CLK_UPLL>,
> <&scg1 IMX7ULP_CLK_SOSC_BUS_CLK>,
> - <&scg1 IMX7ULP_CLK_MIPI_PLL>,
> <&scg1 IMX7ULP_CLK_FIRC_BUS_CLK>,
> <&scg1 IMX7ULP_CLK_ROSC>,
> <&scg1 IMX7ULP_CLK_SPLL_BUS_CLK>;
> diff --git a/drivers/clk/imx/clk-imx7ulp.c b/drivers/clk/imx/clk-imx7ulp.c
> index 2022d9bead91..459b120b71d5 100644
> --- a/drivers/clk/imx/clk-imx7ulp.c
> +++ b/drivers/clk/imx/clk-imx7ulp.c
> @@ -28,7 +28,7 @@ static const char * const scs_sels[] = { "dummy", "sosc", "sirc", "firc", "dumm
> static const char * const ddr_sels[] = { "apll_pfd_sel", "upll", };
> static const char * const nic_sels[] = { "firc", "ddr_clk", };
> static const char * const periph_plat_sels[] = { "dummy", "nic1_bus_clk", "nic1_clk", "ddr_clk", "apll_pfd2", "apll_pfd1", "apll_pfd0", "upll", };
> -static const char * const periph_bus_sels[] = { "dummy", "sosc_bus_clk", "mpll", "firc_bus_clk", "rosc", "nic1_bus_clk", "nic1_clk", "spll_bus_clk", };
> +static const char * const periph_bus_sels[] = { "dummy", "sosc_bus_clk", "dummy", "firc_bus_clk", "rosc", "nic1_bus_clk", "nic1_clk", "spll_bus_clk", };
> static const char * const arm_sels[] = { "divcore", "dummy", "dummy", "hsrun_divcore", };
>
> /* used by sosc/sirc/firc/ddr/spll/apll dividers */
> @@ -75,7 +75,6 @@ static void __init imx7ulp_clk_scg1_init(struct device_node *np)
> clks[IMX7ULP_CLK_SOSC] = imx_obtain_fixed_clk_hw(np, "sosc");
> clks[IMX7ULP_CLK_SIRC] = imx_obtain_fixed_clk_hw(np, "sirc");
> clks[IMX7ULP_CLK_FIRC] = imx_obtain_fixed_clk_hw(np, "firc");
> - clks[IMX7ULP_CLK_MIPI_PLL] = imx_obtain_fixed_clk_hw(np, "mpll");
> clks[IMX7ULP_CLK_UPLL] = imx_obtain_fixed_clk_hw(np, "upll");
>
> /* SCG1 */
> diff --git a/include/dt-bindings/clock/imx7ulp-clock.h b/include/dt-bindings/clock/imx7ulp-clock.h
> index 6f66f9005c81..f8d34fb4378f 100644
> --- a/include/dt-bindings/clock/imx7ulp-clock.h
> +++ b/include/dt-bindings/clock/imx7ulp-clock.h
> @@ -49,15 +49,14 @@
> #define IMX7ULP_CLK_NIC1_DIV 36
> #define IMX7ULP_CLK_NIC1_BUS_DIV 37
> #define IMX7ULP_CLK_NIC1_EXT_DIV 38
> -#define IMX7ULP_CLK_MIPI_PLL 39
> -#define IMX7ULP_CLK_SIRC 40
> -#define IMX7ULP_CLK_SOSC_BUS_CLK 41
> -#define IMX7ULP_CLK_FIRC_BUS_CLK 42
> -#define IMX7ULP_CLK_SPLL_BUS_CLK 43
> -#define IMX7ULP_CLK_HSRUN_SYS_SEL 44
> -#define IMX7ULP_CLK_HSRUN_CORE_DIV 45
> +#define IMX7ULP_CLK_SIRC 39
> +#define IMX7ULP_CLK_SOSC_BUS_CLK 40
> +#define IMX7ULP_CLK_FIRC_BUS_CLK 41
> +#define IMX7ULP_CLK_SPLL_BUS_CLK 42
> +#define IMX7ULP_CLK_HSRUN_SYS_SEL 43
> +#define IMX7ULP_CLK_HSRUN_CORE_DIV 44
No. These clock IDs need to be stable, as they are referred by DT.
If you want to remove an ID, just remove it, keep others unchanged.
Shawn
>
> -#define IMX7ULP_CLK_SCG1_END 46
> +#define IMX7ULP_CLK_SCG1_END 45
>
> /* PCC2 */
> #define IMX7ULP_CLK_DMA1 0
> --
> 2.17.1
>
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^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH 1/2] ARM: dts: imx7ulp: remove mipi pll clock node
2019-08-23 0:37 [PATCH 1/2] ARM: dts: imx7ulp: remove mipi pll clock node Fancy Fang
2019-08-23 0:37 ` [PATCH 2/2] clk: imx7ulp: remove IMX7ULP_CLK_MIPI_PLL clock Fancy Fang
@ 2019-09-11 6:42 ` Shawn Guo
1 sibling, 0 replies; 4+ messages in thread
From: Shawn Guo @ 2019-09-11 6:42 UTC (permalink / raw)
To: Fancy Fang
Cc: Aisheng Dong, Abel Vesa, Anson Huang, sboyd@kernel.org,
mturquette@baylibre.com, Jana Build, linux-clk@vger.kernel.org,
linux-kernel@vger.kernel.org, LnxRevLi, dl-linux-imx,
kernel@pengutronix.de, festevam@gmail.com, s.hauer@pengutronix.de,
linux-arm-kernel@lists.infradead.org
On Fri, Aug 23, 2019 at 12:37:30AM +0000, Fancy Fang wrote:
> According to the IMX7ULP reference manual, the mipi pll
> clock comes from the MIPI PHY PLL output. So it should
> not be defined as a fixed clock. So remove this clock
> node and all the references to it.
>
> Signed-off-by: Fancy Fang <chen.fang@nxp.com>
Applied, thanks.
_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2019-09-11 6:46 UTC | newest]
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2019-08-23 0:37 [PATCH 1/2] ARM: dts: imx7ulp: remove mipi pll clock node Fancy Fang
2019-08-23 0:37 ` [PATCH 2/2] clk: imx7ulp: remove IMX7ULP_CLK_MIPI_PLL clock Fancy Fang
2019-09-11 6:45 ` Shawn Guo
2019-09-11 6:42 ` [PATCH 1/2] ARM: dts: imx7ulp: remove mipi pll clock node Shawn Guo
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