[PATCH] mmc: dw_mmc-exynos: Common bindings for dw-mshc timing

dinguyen
2013-08-08T22:55:05Z

From: Dinh Nguyen <dinguyen@altera.com>

Remove the "samsung" in "samsung,dw-mshc-ciu-div", "samsung,dw-mshc-sdr-timing",
and "samsung,dw-mshc-ddr-timing". These characteristics are not applicable to
just Samsung platforms, but to any platform that uses the Synopsis SD/MMC IP.

Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
CC: Arnd Bergmann <arnd@arndb.de>
Cc: Olof Johansson <olof@lixom.net>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Seungwon Jeon <tgih.jun@samsung.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: devicetree@vger.kernel.org
Cc: linux-mmc@vger.kernel.org
CC: linux-arm-kernel@lists.infradead.org
---
.../devicetree/bindings/mmc/exynos-dw-mshc.txt | 30 --------------------
.../devicetree/bindings/mmc/synopsis-dw-mshc.txt | 29 +++++++++++++++++++
arch/arm/boot/dts/cros5250-common.dtsi | 18 ++++++------
arch/arm/boot/dts/exynos4412-odroidx.dts | 6 ++--
arch/arm/boot/dts/exynos4412-origen.dts | 6 ++--
arch/arm/boot/dts/exynos5250-arndale.dts | 12 ++++----
arch/arm/boot/dts/exynos5250-smdk5250.dts | 12 ++++----
drivers/mmc/host/dw_mmc-exynos.c | 6 ++--
8 files changed, 59 insertions(+), 60 deletions(-)

diff --git a/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt
index 6d1c098..ddb1d95 100644
--- a/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt
+++ b/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt
@@ -17,33 +17,6 @@ Required Properties:
- "samsung,exynos5250-dw-mshc": for controllers with Samsung Exynos5250
specific extensions.

-* samsung,dw-mshc-ciu-div: Specifies the divider value for the card interface
- unit (ciu) clock. This property is applicable only for Exynos5 SoC's and
- ignored for Exynos4 SoC's. The valid range of divider value is 0 to 7.
-
-* samsung,dw-mshc-sdr-timing: Specifies the value of CIU clock phase shift value
- in transmit mode and CIU clock phase shift value in receive mode for single
- data rate mode operation. Refer notes below for the order of the cells and the
- valid values.
-
-* samsung,dw-mshc-ddr-timing: Specifies the value of CUI clock phase shift value
- in transmit mode and CIU clock phase shift value in receive mode for double
- data rate mode operation. Refer notes below for the order of the cells and the
- valid values.
-
- Notes for the sdr-timing and ddr-timing values:
-
- The order of the cells should be
- - First Cell: CIU clock phase shift value for tx mode.
- - Second Cell: CIU clock phase shift value for rx mode.
-
- Valid values for SDR and DDR CIU clock timing for Exynos5250:
- - valid value for tx phase shift and rx phase shift is 0 to 7.
- - when CIU clock divider value is set to 3, all possible 8 phase shift
- values can be used.
- - if CIU clock divider value is 0 (that is divide by 1), both tx and rx
- phase shift clocks should be 0.
-
Required properties for a slot:

* gpios: specifies a list of gpios used for command, clock and data bus. The
@@ -71,9 +44,6 @@ Example:
broken-cd;
fifo-depth = <0x80>;
card-detect-delay = <200>;
- samsung,dw-mshc-ciu-div = <3>;
- samsung,dw-mshc-sdr-timing = <2 3>;
- samsung,dw-mshc-ddr-timing = <1 2>;

slot@0 {
reg = <0>;
diff --git a/Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt
index cdcebea..cf85a8c 100644
--- a/Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt
+++ b/Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt
@@ -71,6 +71,32 @@ Optional properties:
* vmmc-supply: The phandle to the regulator to use for vmmc. If this is
specified we'll defer probe until we can find this regulator.

+* dw-mshc-ciu-div: Specifies the divider value for the card interface
+ unit (ciu) clock. The valid range of divider value is 0 to 7.
+
+* dw-mshc-sdr-timing: Specifies the value of CIU clock phase shift value
+ in transmit mode and CIU clock phase shift value in receive mode for single
+ data rate mode operation. Refer notes below for the order of the cells and the
+ valid values.
+
+* dw-mshc-ddr-timing: Specifies the value of CUI clock phase shift value
+ in transmit mode and CIU clock phase shift value in receive mode for double
+ data rate mode operation. Refer notes below for the order of the cells and the
+ valid values.
+
+ Notes for the sdr-timing and ddr-timing values:
+
+ The order of the cells should be
+ - First Cell: CIU clock phase shift value for tx mode.
+ - Second Cell: CIU clock phase shift value for rx mode.
+
+ Valid values for SDR and DDR CIU clock timing for Exynos5250:
+ - valid value for tx phase shift and rx phase shift is 0 to 7.
+ - when CIU clock divider value is set to 3, all possible 8 phase shift
+ values can be used.
+ - if CIU clock divider value is 0 (that is divide by 1), both tx and rx
+ phase shift clocks should be 0.
+
Aliases:

- All the MSHC controller nodes should be represented in the aliases node using
@@ -99,6 +125,9 @@ board specific portions as listed below.
fifo-depth = <0x80>;
card-detect-delay = <200>;
vmmc-supply = <&buck8>;
+ dw-mshc-ciu-div = <3>;
+ dw-mshc-sdr-timing = <2 3>;
+ dw-mshc-ddr-timing = <1 2>;

slot@0 {
reg = <0>;
diff --git a/arch/arm/boot/dts/cros5250-common.dtsi b/arch/arm/boot/dts/cros5250-common.dtsi
index dc259e8b..93d3c85 100644
--- a/arch/arm/boot/dts/cros5250-common.dtsi
+++ b/arch/arm/boot/dts/cros5250-common.dtsi
@@ -235,9 +235,9 @@
broken-cd;
fifo-depth = <0x80>;
card-detect-delay = <200>;
- samsung,dw-mshc-ciu-div = <3>;
- samsung,dw-mshc-sdr-timing = <2 3>;
- samsung,dw-mshc-ddr-timing = <1 2>;
+ dw-mshc-ciu-div = <3>;
+ dw-mshc-sdr-timing = <2 3>;
+ dw-mshc-ddr-timing = <1 2>;
pinctrl-names = "default";
pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_cd &sd0_bus4 &sd0_bus8>;

@@ -256,9 +256,9 @@
supports-highspeed;
fifo-depth = <0x80>;
card-detect-delay = <200>;
- samsung,dw-mshc-ciu-div = <3>;
- samsung,dw-mshc-sdr-timing = <2 3>;
- samsung,dw-mshc-ddr-timing = <1 2>;
+ dw-mshc-ciu-div = <3>;
+ dw-mshc-sdr-timing = <2 3>;
+ dw-mshc-ddr-timing = <1 2>;
pinctrl-names = "default";
pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_bus4>;

@@ -275,9 +275,9 @@
broken-cd;
fifo-depth = <0x80>;
card-detect-delay = <200>;
- samsung,dw-mshc-ciu-div = <3>;
- samsung,dw-mshc-sdr-timing = <2 3>;
- samsung,dw-mshc-ddr-timing = <1 2>;
+ dw-mshc-ciu-div = <3>;
+ dw-mshc-sdr-timing = <2 3>;
+ dw-mshc-ddr-timing = <1 2>;
/* See board-specific dts files for pin setup */

slot@0 {
diff --git a/arch/arm/boot/dts/exynos4412-odroidx.dts b/arch/arm/boot/dts/exynos4412-odroidx.dts
index 46c678e..e6c3b23 100644
--- a/arch/arm/boot/dts/exynos4412-odroidx.dts
+++ b/arch/arm/boot/dts/exynos4412-odroidx.dts
@@ -51,9 +51,9 @@
broken-cd;
fifo-depth = <0x80>;
card-detect-delay = <200>;
- samsung,dw-mshc-ciu-div = <3>;
- samsung,dw-mshc-sdr-timing = <2 3>;
- samsung,dw-mshc-ddr-timing = <1 2>;
+ dw-mshc-ciu-div = <3>;
+ dw-mshc-sdr-timing = <2 3>;
+ dw-mshc-ddr-timing = <1 2>;

slot@0 {
reg = <0>;
diff --git a/arch/arm/boot/dts/exynos4412-origen.dts b/arch/arm/boot/dts/exynos4412-origen.dts
index 7993641..b403a57 100644
--- a/arch/arm/boot/dts/exynos4412-origen.dts
+++ b/arch/arm/boot/dts/exynos4412-origen.dts
@@ -122,9 +122,9 @@
broken-cd;
fifo-depth = <0x80>;
card-detect-delay = <200>;
- samsung,dw-mshc-ciu-div = <3>;
- samsung,dw-mshc-sdr-timing = <2 3>;
- samsung,dw-mshc-ddr-timing = <1 2>;
+ dw-mshc-ciu-div = <3>;
+ dw-mshc-sdr-timing = <2 3>;
+ dw-mshc-ddr-timing = <1 2>;

slot@0 {
reg = <0>;
diff --git a/arch/arm/boot/dts/exynos5250-arndale.dts b/arch/arm/boot/dts/exynos5250-arndale.dts
index abc7272..72aa743 100644
--- a/arch/arm/boot/dts/exynos5250-arndale.dts
+++ b/arch/arm/boot/dts/exynos5250-arndale.dts
@@ -324,9 +324,9 @@
broken-cd;
fifo-depth = <0x80>;
card-detect-delay = <200>;
- samsung,dw-mshc-ciu-div = <3>;
- samsung,dw-mshc-sdr-timing = <2 3>;
- samsung,dw-mshc-ddr-timing = <1 2>;
+ dw-mshc-ciu-div = <3>;
+ dw-mshc-sdr-timing = <2 3>;
+ dw-mshc-ddr-timing = <1 2>;
vmmc-supply = <&mmc_reg>;
pinctrl-names = "default";
pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus4 &sd0_bus8>;
@@ -346,9 +346,9 @@
supports-highspeed;
fifo-depth = <0x80>;
card-detect-delay = <200>;
- samsung,dw-mshc-ciu-div = <3>;
- samsung,dw-mshc-sdr-timing = <2 3>;
- samsung,dw-mshc-ddr-timing = <1 2>;
+ dw-mshc-ciu-div = <3>;
+ dw-mshc-sdr-timing = <2 3>;
+ dw-mshc-ddr-timing = <1 2>;
vmmc-supply = <&mmc_reg>;
pinctrl-names = "default";
pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_bus4>;
diff --git a/arch/arm/boot/dts/exynos5250-smdk5250.dts b/arch/arm/boot/dts/exynos5250-smdk5250.dts
index 49f18c2..220da19 100644
--- a/arch/arm/boot/dts/exynos5250-smdk5250.dts
+++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts
@@ -146,9 +146,9 @@
broken-cd;
fifo-depth = <0x80>;
card-detect-delay = <200>;
- samsung,dw-mshc-ciu-div = <3>;
- samsung,dw-mshc-sdr-timing = <2 3>;
- samsung,dw-mshc-ddr-timing = <1 2>;
+ dw-mshc-ciu-div = <3>;
+ dw-mshc-sdr-timing = <2 3>;
+ dw-mshc-ddr-timing = <1 2>;
pinctrl-names = "default";
pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus4 &sd0_bus8>;

@@ -167,9 +167,9 @@
supports-highspeed;
fifo-depth = <0x80>;
card-detect-delay = <200>;
- samsung,dw-mshc-ciu-div = <3>;
- samsung,dw-mshc-sdr-timing = <2 3>;
- samsung,dw-mshc-ddr-timing = <1 2>;
+ dw-mshc-ciu-div = <3>;
+ dw-mshc-sdr-timing = <2 3>;
+ dw-mshc-ddr-timing = <1 2>;
pinctrl-names = "default";
pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_bus4>;

diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c
index 866edef..553f3c1 100644
--- a/drivers/mmc/host/dw_mmc-exynos.c
+++ b/drivers/mmc/host/dw_mmc-exynos.c
@@ -131,18 +131,18 @@ static int dw_mci_exynos_parse_dt(struct dw_mci *host)
u32 div = 0;
int ret;

- of_property_read_u32(np, "samsung,dw-mshc-ciu-div", &div);
+ of_property_read_u32(np, "dw-mshc-ciu-div", &div);
priv->ciu_div = div;

ret = of_property_read_u32_array(np,
- "samsung,dw-mshc-sdr-timing", timing, 2);
+ "dw-mshc-sdr-timing", timing, 2);
if (ret)
return ret;

priv->sdr_timing = SDMMC_CLKSEL_TIMING(timing[0], timing[1], div);

ret = of_property_read_u32_array(np,
- "samsung,dw-mshc-ddr-timing", timing, 2);
+ "dw-mshc-ddr-timing", timing, 2);
if (ret)
return ret;

--
1.7.9.5