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Message-ID: <52CED74B.3030806@overkiz.com>
Date: Thu, 09 Jan 2014 18:07:23 +0100
From: boris brezillon <b.brezillon@...rkiz.com>
To: Jean-Jacques Hiblot <jjhiblot@...phandler.com>,
nicolas.ferre@...el.com, arnd@...db.de
CC: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 03/12] at91: dt: sam9261: Added support for the lcd
display
On 09/01/2014 13:31, Jean-Jacques Hiblot wrote:
> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@...phandler.com>
> ---
> arch/arm/boot/dts/at91sam9261.dtsi | 37 ++++++++++++++++++++++++++++++++++++-
> arch/arm/boot/dts/at91sam9261ek.dts | 31 +++++++++++++++++++++++++++++++
> arch/arm/mach-at91/at91sam9261.c | 1 +
> 3 files changed, 68 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/at91sam9261.dtsi b/arch/arm/boot/dts/at91sam9261.dtsi
> index 773c3d6..cd219b9 100644
> --- a/arch/arm/boot/dts/at91sam9261.dtsi
> +++ b/arch/arm/boot/dts/at91sam9261.dtsi
> @@ -290,7 +290,33 @@
> atmel,pins = <AT91_PIOC 24 AT91_PERIPH_B AT91_PINCTRL_NONE>;
> };
> };
> -
> + fb {
> + pinctrl_fb: fb-0 {
> + atmel,pins =
> + <AT91_PIOB 1 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB1 periph A */
> + AT91_PIOB 2 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB2 periph A */
> + AT91_PIOB 3 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB3 periph A */
> + AT91_PIOB 7 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB7 periph A */
> + AT91_PIOB 8 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB8 periph A */
> + AT91_PIOB 9 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB9 periph A */
> + AT91_PIOB 10 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB10 periph A */
> + AT91_PIOB 11 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB11 periph A */
> + AT91_PIOB 12 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB12 periph A */
> + AT91_PIOB 15 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB15 periph A */
> + AT91_PIOB 16 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB16 periph A */
> + AT91_PIOB 17 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB17 periph A */
> + AT91_PIOB 18 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB18 periph A */
> + AT91_PIOB 19 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB19 periph A */
> + AT91_PIOB 20 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB20 periph A */
> + AT91_PIOB 23 AT91_PERIPH_B AT91_PINCTRL_NONE /* PB23 periph B */
> + AT91_PIOB 24 AT91_PERIPH_B AT91_PINCTRL_NONE /* PB24 periph B */
> + AT91_PIOB 25 AT91_PERIPH_B AT91_PINCTRL_NONE /* PB25 periph B */
> + AT91_PIOB 26 AT91_PERIPH_B AT91_PINCTRL_NONE /* PB26 periph B */
> + AT91_PIOB 27 AT91_PERIPH_B AT91_PINCTRL_NONE /* PB27 periph B */
> + AT91_PIOB 28 AT91_PERIPH_B AT91_PINCTRL_NONE /* PB28 periph B */
> + >;
> + };
> + };
> pioA: gpio@...ff400 {
> compatible = "atmel,at91rm9200-gpio";
> reg = <0xfffff400 0x200>;
> @@ -436,6 +462,15 @@
> };
> };
>
> + fb0: fb@...0600000 {
> + compatible = "atmel,at91sam9261-lcdc";
> + reg = <0x00600000 0x1000>;
> + interrupts = <21 IRQ_TYPE_LEVEL_HIGH 3>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_fb>;
> + status = "disabled";
> + };
> +
> nand0: nand@...00000 {
> compatible = "atmel,at91rm9200-nand";
> #address-cells = <1>;
> diff --git a/arch/arm/boot/dts/at91sam9261ek.dts b/arch/arm/boot/dts/at91sam9261ek.dts
> index f3d22a9..03c05fc 100644
> --- a/arch/arm/boot/dts/at91sam9261ek.dts
> +++ b/arch/arm/boot/dts/at91sam9261ek.dts
> @@ -52,6 +52,37 @@
> reg = <0x0 0x20000>;
> };
> };
One more nitpick :
I think this should be taken out in another patch (first 9261 lcdc support,
then ek board lcd def) :p.
> +
> + fb0: fb@...0600000 {
> + display = <&display0>;
> + status = "okay";
> + atmel,power-control-gpio = <&pioA 12 GPIO_ACTIVE_LOW>;
> + display0: display {
> + bits-per-pixel = <16>;
> + atmel,lcdcon-backlight;
> + atmel,dmacon = <0x1>;
> + atmel,lcdcon2 = <0x80008002>;
> + atmel,guard-time = <1>;
> + atmel,lcd-wiring-mode = "BRG";
> +
> + display-timings {
> + native-mode = <&timing0>;
> + timing0: timing0 {
> + clock-frequency = <4965000>;
> + hactive = <240>;
> + vactive = <320>;
> + hback-porch = <1>;
> + hfront-porch = <33>;
> + vback-porch = <1>;
> + vfront-porch = <0>;
> + hsync-len = <5>;
> + vsync-len = <1>;
> + hsync-active = <1>;
> + vsync-active = <1>;
> + };
> + };
> + };
> + };
> };
>
> leds {
> diff --git a/arch/arm/mach-at91/at91sam9261.c b/arch/arm/mach-at91/at91sam9261.c
> index 200d17a..a67bfe6 100644
> --- a/arch/arm/mach-at91/at91sam9261.c
> +++ b/arch/arm/mach-at91/at91sam9261.c
> @@ -197,6 +197,7 @@ static struct clk_lookup periph_clocks_lookups[] = {
> /* more tc lookup table for DT entries */
> CLKDEV_CON_DEV_ID("t0_clk", "fffa0000.timer", &tc0_clk),
> CLKDEV_CON_DEV_ID("hclk", "500000.ohci", &ohci_clk),
> + CLKDEV_CON_DEV_ID("hclk", "600000.fb", &hck1),
> CLKDEV_CON_DEV_ID("spi_clk", "fffc8000.spi", &spi0_clk),
> CLKDEV_CON_DEV_ID("spi_clk", "fffcc000.spi", &spi1_clk),
> CLKDEV_CON_DEV_ID("mci_clk", "fffa8000.mmc", &mmc_clk),
--
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