From: John Stultz <john.stultz@linaro.org>
To: lkml <linux-kernel@vger.kernel.org>
Cc: Xu YiPing <xuyiping@hisilicon.com>,
Rongrong Zou <zourongrong@gmail.com>,
Xinliang Liu <z.liuxinliang@hisilicon.com>,
David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
dri-devel <dri-devel@lists.freedesktop.org>,
Sam Ravnborg <sam@ravnborg.org>,
John Stultz <john.stultz@linaro.org>
Subject: [PATCH v4 08/25] drm: kirin: Dynamically allocate the hw_ctx
Date: Mon, 19 Aug 2019 23:03:04 +0000 [thread overview]
Message-ID: <20190819230321.56480-9-john.stultz@linaro.org> (raw)
In-Reply-To: <20190819230321.56480-1-john.stultz@linaro.org>
From: Xu YiPing <xuyiping@hisilicon.com>
As part of refactoring the kirin driver to better support
different hardware revisions, this patch modifies the
initialization function to dynamically allocate the ade_hw_ctx
structure previously kept as part of struct ade_data.
This is done so that later we can have the hw_ctx point to
hardware revision specific ctx structures.
Cc: Rongrong Zou <zourongrong@gmail.com>
Cc: Xinliang Liu <z.liuxinliang@hisilicon.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel <dri-devel@lists.freedesktop.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Xinliang Liu <z.liuxinliang@hisilicon.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Xu YiPing <xuyiping@hisilicon.com>
[jstultz: reworded commit message]
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
.../gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 39 ++++++++++++-------
1 file changed, 24 insertions(+), 15 deletions(-)
diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
index fce374ec69e8..ecb507985fea 100644
--- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
+++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
@@ -72,7 +72,7 @@ struct kirin_plane {
struct ade_data {
struct kirin_crtc crtc;
struct kirin_plane planes[ADE_CH_NUM];
- struct ade_hw_ctx ctx;
+ struct ade_hw_ctx *hw_ctx;
};
/* ade-format info: */
@@ -951,55 +951,62 @@ static int ade_plane_init(struct drm_device *dev, struct kirin_plane *kplane,
return 0;
}
-static int ade_dts_parse(struct platform_device *pdev, struct ade_hw_ctx *ctx)
+static void *ade_hw_ctx_alloc(struct platform_device *pdev)
{
struct resource *res;
struct device *dev = &pdev->dev;
struct device_node *np = pdev->dev.of_node;
+ struct ade_hw_ctx *ctx = NULL;
+
+ ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+ if (!ctx) {
+ DRM_ERROR("failed to alloc ade_hw_ctx\n");
+ return ERR_PTR(-ENOMEM);
+ }
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
ctx->base = devm_ioremap_resource(dev, res);
if (IS_ERR(ctx->base)) {
DRM_ERROR("failed to remap ade io base\n");
- return PTR_ERR(ctx->base);
+ return ERR_PTR(-EIO);
}
ctx->reset = devm_reset_control_get(dev, NULL);
if (IS_ERR(ctx->reset))
- return PTR_ERR(ctx->reset);
+ return ERR_PTR(-ENODEV);
ctx->noc_regmap =
syscon_regmap_lookup_by_phandle(np, "hisilicon,noc-syscon");
if (IS_ERR(ctx->noc_regmap)) {
DRM_ERROR("failed to get noc regmap\n");
- return PTR_ERR(ctx->noc_regmap);
+ return ERR_PTR(-ENODEV);
}
ctx->irq = platform_get_irq(pdev, 0);
if (ctx->irq < 0) {
DRM_ERROR("failed to get irq\n");
- return -ENODEV;
+ return ERR_PTR(-ENODEV);
}
ctx->ade_core_clk = devm_clk_get(dev, "clk_ade_core");
if (IS_ERR(ctx->ade_core_clk)) {
DRM_ERROR("failed to parse clk ADE_CORE\n");
- return PTR_ERR(ctx->ade_core_clk);
+ return ERR_PTR(-ENODEV);
}
ctx->media_noc_clk = devm_clk_get(dev, "clk_codec_jpeg");
if (IS_ERR(ctx->media_noc_clk)) {
DRM_ERROR("failed to parse clk CODEC_JPEG\n");
- return PTR_ERR(ctx->media_noc_clk);
+ return ERR_PTR(-ENODEV);
}
ctx->ade_pix_clk = devm_clk_get(dev, "clk_ade_pix");
if (IS_ERR(ctx->ade_pix_clk)) {
DRM_ERROR("failed to parse clk ADE_PIX\n");
- return PTR_ERR(ctx->ade_pix_clk);
+ return ERR_PTR(-ENODEV);
}
- return 0;
+ return ctx;
}
static int ade_drm_init(struct platform_device *pdev)
@@ -1020,14 +1027,16 @@ static int ade_drm_init(struct platform_device *pdev)
}
platform_set_drvdata(pdev, ade);
- ctx = &ade->ctx;
+ ctx = ade_hw_ctx_alloc(pdev);
+ if (IS_ERR(ctx)) {
+ DRM_ERROR("failed to initialize kirin_priv hw ctx\n");
+ return -EINVAL;
+ }
+ ade->hw_ctx = ctx;
+
kcrtc = &ade->crtc;
kcrtc->hw_ctx = ctx;
- ret = ade_dts_parse(pdev, ctx);
- if (ret)
- return ret;
-
/*
* plane init
* TODO: Now only support primary plane, overlay planes
--
2.17.1
next prev parent reply other threads:[~2019-08-19 23:03 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-19 23:02 [PATCH v4 00/25] drm: Kirin driver cleanups to prep for Kirin960 support John Stultz
2019-08-19 23:02 ` [PATCH v4 01/25] drm: kirin: Fix for hikey620 display offset problem John Stultz
2019-08-19 23:02 ` [PATCH v4 02/25] drm: kirin: Remove HISI_KIRIN_DW_DSI config option John Stultz
2019-08-19 23:02 ` [PATCH v4 03/25] drm: kirin: Remove unreachable return John Stultz
2019-08-19 23:03 ` [PATCH v4 04/25] drm: kirin: Remove uncessary parameter indirection John Stultz
2019-08-19 23:03 ` [PATCH v4 05/25] drm: kirin: Remove out_format from ade_crtc John Stultz
2019-08-19 23:03 ` [PATCH v4 06/25] drm: kirin: Rename ade_plane to kirin_plane John Stultz
2019-08-19 23:03 ` [PATCH v4 07/25] drm: kirin: Rename ade_crtc to kirin_crtc John Stultz
2019-08-19 23:03 ` John Stultz [this message]
2019-08-19 23:03 ` [PATCH v4 09/25] drm: kirin: Move request irq handle in ade hw ctx alloc John Stultz
2019-08-19 23:03 ` [PATCH v4 10/25] drm: kirin: Move workqueue to ade_hw_ctx structure John Stultz
2019-08-19 23:03 ` [PATCH v4 11/25] drm: kirin: Move kirin_crtc, kirin_plane, kirin_format to kirin_drm_drv.h John Stultz
2019-08-19 23:03 ` [PATCH v4 12/25] drm: kirin: Reanme dc_ops to kirin_drm_data John Stultz
2019-08-19 23:03 ` [PATCH v4 13/25] drm: kirin: Move ade crtc/plane help functions to driver_data John Stultz
2019-08-19 23:03 ` [PATCH v4 14/25] drm: kirin: Move channel formats to driver data John Stultz
2019-08-19 23:03 ` [PATCH v4 15/25] drm: kirin: Move mode config function to driver_data John Stultz
2019-08-19 23:03 ` [PATCH v4 16/25] drm: kirin: Move plane number and primay plane in driver data John Stultz
2019-08-19 23:03 ` [PATCH v4 17/25] drm: kirin: Move config max_width and max_height to " John Stultz
2019-08-19 23:03 ` [PATCH v4 18/25] drm: kirin: Move drm driver " John Stultz
2019-08-19 23:03 ` [PATCH v4 19/25] drm: kirin: Add register connect helper functions in drm init John Stultz
2019-08-19 23:03 ` [PATCH v4 20/25] drm: kirin: Rename plane_init and crtc_init John Stultz
2019-08-19 23:03 ` [PATCH v4 21/25] drm: kirin: Fix dev->driver_data setting John Stultz
2019-08-19 23:03 ` [PATCH v4 22/25] drm: kirin: Make driver_data variable non-global John Stultz
2019-08-19 23:03 ` [PATCH v4 23/25] drm: kirin: Add alloc_hw_ctx/clean_hw_ctx ops in driver data John Stultz
2019-08-19 23:03 ` [PATCH v4 24/25] drm: kirin: Pass driver data to crtc init and plane init John Stultz
2019-08-19 23:03 ` [PATCH v4 25/25] drm: kirin: Move ade drm init to kirin drm drv John Stultz
2019-08-20 20:01 ` [PATCH v4 00/25] drm: Kirin driver cleanups to prep for Kirin960 support Sam Ravnborg
2019-08-20 20:38 ` John Stultz
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