linux-kernel - Re: [PATCH 5/5] drm/msm/mdp5: Add hardware configuration for msm8x16

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Date:	Thu, 12 Mar 2015 14:34:42 +0530
From:	Archit Taneja <architt@...eaurora.org>
To:	Stephane Viau <sviau@...eaurora.org>,
	dri-devel@...ts.freedesktop.org
CC:	linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
	robdclark@...il.com
Subject: Re: [PATCH 5/5] drm/msm/mdp5: Add hardware configuration for msm8x16

Hi,

On 03/09/2015 06:41 PM, Stephane Viau wrote:
> This change adds the hw configuration for msm8x16 chipsets in
> mdp5_cfg module.
>
> Note that only one external display interface is present in this
> configuration (DSI) but has not been enabled yet. It will be enabled
> once drm/msm driver supports DSI connectors.
>
> Signed-off-by: Stephane Viau <sviau@...eaurora.org>
> ---
>   drivers/gpu/drm/msm/mdp/mdp5/mdp5_cfg.c | 51 ++++++++++++++++++++++++++++++++-
>   1 file changed, 50 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cfg.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cfg.c
> index 96ea6dd..9ff7ac1 100644
> --- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cfg.c
> +++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cfg.c
> @@ -1,5 +1,5 @@
>   /*
> - * Copyright (c) 2014 The Linux Foundation. All rights reserved.
> + * Copyright (c) 2014-2015 The Linux Foundation. All rights reserved.
>    *
>    * This program is free software; you can redistribute it and/or modify
>    * it under the terms of the GNU General Public License version 2 and
> @@ -150,10 +150,59 @@ const struct mdp5_cfg_hw apq8084_config = {
>   	.max_clk = 320000000,
>   };
>
> +const struct mdp5_cfg_hw msm8x16_config = {
> +	.name = "msm8x16",
> +	.mdp = {
> +		.count = 1,
> +		.base = { 0x01000 },
> +	},
> +	.smp = {
> +		.mmb_count = 8,
> +		.mmb_size = 8192,
> +		.clients = {
> +			[SSPP_VIG0] = 1, [SSPP_DMA0] = 4,
> +			[SSPP_RGB0] = 7, [SSPP_RGB1] = 8,
> +		},
> +	},
> +	.ctl = {
> +		.count = 5,
> +		.base = { 0x02000, 0x02200, 0x02400, 0x02600, 0x02800 },
> +	},
> +	.pipe_vig = {
> +		.count = 1,
> +		.base = { 0x05000 },
> +	},
> +	.pipe_rgb = {
> +		.count = 2,
> +		.base = { 0x15000, 0x17000 },
> +	},
> +	.pipe_dma = {
> +		.count = 1,
> +		.base = { 0x25000 },
> +	},
> +	.lm = {
> +		.count = 2, /* LM0 and LM3 */
> +		.base = { 0x45000, 0x48000 },
> +		.nb_stages = 5,
> +	},
> +	.dspp = {
> +		.count = 1,
> +		.base = { 0x55000 },
> +
> +	},
> +	.intf = {
> +		.count = 1, /* INTF_1 */
> +		.base = { 0x6B800 },

We would need to put the other non-existent INTF_0, INTF_2 and INTF_3 
base addresses here too, so that the writes to 
REG_MDP5_INTF_TIMING_ENGINE_EN in the patch "Make the intf connection in 
config module" access the correct registers.

Archit

> +	},
> +	/* TODO enable .intfs[] with [1] = INTF_DSI, once DSI is implemented */
> +	.max_clk = 320000000,
> +};
> +
>   static const struct mdp5_cfg_handler cfg_handlers[] = {
>   	{ .revision = 0, .config = { .hw = &msm8x74_config } },
>   	{ .revision = 2, .config = { .hw = &msm8x74_config } },
>   	{ .revision = 3, .config = { .hw = &apq8084_config } },
> +	{ .revision = 6, .config = { .hw = &msm8x16_config } },
>   };
>
>
>

-- 
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