From: Ludovic Desroches <ludovic.desroches@microchip.com>
To: linux-arm-kernel@lists.infradead.org, linux-mmc@vger.kernel.org,
devicetree@vger.kernel.org
Cc: ulf.hansson@linaro.org, nicolas.ferre@microchip.com,
adrian.hunter@intel.com, linux-kernel@vger.kernel.org,
robh+dt@kernel.org, mark.rutland@arm.com,
claudiu.beznea@microchip.com, Eugen.Hristev@microchip.com,
alexandre.belloni@bootlin.com,
Ludovic Desroches <ludovic.desroches@microchip.com>,
Rob Herring <robh@kernel.org>
Subject: [PATCH v3 1/3] dt-bindings: sdhci-of-at91: new compatible string and update properties
Date: Fri, 25 Oct 2019 10:03:42 +0200 [thread overview]
Message-ID: <20191025080344.15492-1-ludovic.desroches@microchip.com> (raw)
There is a new compatible string for the SAM9X60 sdhci device. It involves
an update of the properties about the clocks stuff.
Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
Changes:
- v3: rebase due to conflict with Nicolas' patch
- v2: remove the extra example and fix node label
.../devicetree/bindings/mmc/sdhci-atmel.txt | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-atmel.txt b/Documentation/devicetree/bindings/mmc/sdhci-atmel.txt
index 503c6dbac1b2..69edfd4d3922 100644
--- a/Documentation/devicetree/bindings/mmc/sdhci-atmel.txt
+++ b/Documentation/devicetree/bindings/mmc/sdhci-atmel.txt
@@ -5,11 +5,16 @@ Documentation/devicetree/bindings/mmc/mmc.txt and the properties used by the
sdhci-of-at91 driver.
Required properties:
-- compatible: Must be "atmel,sama5d2-sdhci".
+- compatible: Must be "atmel,sama5d2-sdhci" or "microchip,sam9x60-sdhci".
- clocks: Phandlers to the clocks.
-- clock-names: Must be "hclock", "multclk", "baseclk";
+- clock-names: Must be "hclock", "multclk", "baseclk" for
+ "atmel,sama5d2-sdhci".
+ Must be "hclock", "multclk" for "microchip,sam9x60-sdhci".
Optional properties:
+- assigned-clocks: The same with "multclk".
+- assigned-clock-rates The rate of "multclk" in order to not rely on the
+ gck configuration set by previous components.
- microchip,sdcal-inverted: when present, polarity on the SDCAL SoC pin is
inverted. The default polarity for this signal is described in the datasheet.
For instance on SAMA5D2, the pin is usually tied to the GND with a resistor
@@ -17,10 +22,12 @@ Optional properties:
Example:
-sdmmc0: sdio-host@a0000000 {
+mmc0: sdio-host@a0000000 {
compatible = "atmel,sama5d2-sdhci";
reg = <0xa0000000 0x300>;
interrupts = <31 IRQ_TYPE_LEVEL_HIGH 0>;
clocks = <&sdmmc0_hclk>, <&sdmmc0_gclk>, <&main>;
clock-names = "hclock", "multclk", "baseclk";
+ assigned-clocks = <&sdmmc0_gclk>;
+ assigned-clock-rates = <480000000>;
};
--
2.24.0.rc0
next reply other threads:[~2019-10-25 8:03 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-25 8:03 Ludovic Desroches [this message]
2019-10-25 8:03 ` [PATCH v3 2/3] mmc: sdhci-of-at91: rework clocks management to support SAM9x60 device Ludovic Desroches
2019-10-28 11:30 ` Adrian Hunter
2019-11-25 10:24 ` [PATCH v4 " Ludovic Desroches
2019-11-26 12:27 ` Adrian Hunter
2019-10-25 8:03 ` [PATCH v3 3/3] ARM: dts: at91: sama5d2: set the sdmmc gclk frequency Ludovic Desroches
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