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From: "H. Nikolaus Schaller" <hns@goldelico.com>
To: Paul Cercueil <paul@crapouillou.net>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
	"H. Nikolaus Schaller" <hns@goldelico.com>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Kees Cook <keescook@chromium.org>,
	"Eric W. Biederman" <ebiederm@xmission.com>,
	Miquel Raynal <miquel.raynal@bootlin.com>,
	David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
	Neil Armstrong <narmstrong@baylibre.com>,
	Robert Foss <robert.foss@linaro.org>,
	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	Ezequiel Garcia <ezequiel@collabora.com>,
	Harry Wentland <harry.wentland@amd.com>,
	Sam Ravnborg <sam@ravnborg.org>,
	Maxime Ripard <maxime@cerno.tech>,
	Hans Verkuil <hverkuil-cisco@xs4all.nl>,
	Liam Girdwood <lgirdwood@gmail.com>,
	Mark Brown <broonie@kernel.org>, Paul Boddie <paul@boddie.org.uk>
Cc: devicetree@vger.kernel.org, linux-mips@vger.kernel.org,
	linux-kernel@vger.kernel.org, letux-kernel@openphoenux.org,
	Jonas Karlman <jonas@kwiboo.se>,
	dri-devel@lists.freedesktop.org
Subject: [PATCH v9 1/8] drm/ingenic: prepare ingenic drm for later addition of JZ4780
Date: Wed, 24 Nov 2021 22:29:07 +0100	[thread overview]
Message-ID: <de5ed6a7225e17b0d978a5211052346123b0532b.1637789354.git.hns@goldelico.com> (raw)
In-Reply-To: <cover.1637789354.git.hns@goldelico.com>

This changes the way the regmap is allocated to prepare for the
later addition of the JZ4780 which has more registers and bits
than the others.

Therefore we make the regmap as big as the reg property in
the device tree tells.

Suggested-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
---
 drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
index 462bc0f35f1bf..0bb590c3910d9 100644
--- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
+++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
@@ -173,7 +173,6 @@ static const struct regmap_config ingenic_drm_regmap_config = {
 	.val_bits = 32,
 	.reg_stride = 4,
 
-	.max_register = JZ_REG_LCD_SIZE1,
 	.writeable_reg = ingenic_drm_writeable_reg,
 };
 
@@ -1011,6 +1010,8 @@ static int ingenic_drm_bind(struct device *dev, bool has_components)
 	struct ingenic_drm_bridge *ib;
 	struct drm_device *drm;
 	void __iomem *base;
+	struct resource *res;
+	struct regmap_config regmap_config;
 	long parent_rate;
 	unsigned int i, clone_mask = 0;
 	int ret, irq;
@@ -1056,14 +1057,16 @@ static int ingenic_drm_bind(struct device *dev, bool has_components)
 	drm->mode_config.funcs = &ingenic_drm_mode_config_funcs;
 	drm->mode_config.helper_private = &ingenic_drm_mode_config_helpers;
 
-	base = devm_platform_ioremap_resource(pdev, 0);
+	base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(base)) {
 		dev_err(dev, "Failed to get memory resource\n");
 		return PTR_ERR(base);
 	}
 
+	regmap_config = ingenic_drm_regmap_config;
+	regmap_config.max_register = res->end - res->start;
 	priv->map = devm_regmap_init_mmio(dev, base,
-					  &ingenic_drm_regmap_config);
+					  &regmap_config);
 	if (IS_ERR(priv->map)) {
 		dev_err(dev, "Failed to create regmap\n");
 		return PTR_ERR(priv->map);
-- 
2.33.0


  reply	other threads:[~2021-11-24 21:29 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-24 21:29 [PATCH v9 0/8] MIPS: JZ4780 and CI20 HDMI H. Nikolaus Schaller
2021-11-24 21:29 ` H. Nikolaus Schaller [this message]
2021-11-24 21:29 ` [PATCH v9 2/8] drm/ingenic: Add support for JZ4780 and HDMI output H. Nikolaus Schaller
2021-11-24 21:29 ` [PATCH v9 3/8] dt-bindings: display: Add ingenic,jz4780-dw-hdmi DT Schema H. Nikolaus Schaller
2021-11-25 21:26   ` Rob Herring
2021-11-30 17:01     ` H. Nikolaus Schaller
2021-11-30 18:19       ` Rob Herring
2021-11-24 21:29 ` [PATCH v9 4/8] drm/ingenic: Add dw-hdmi driver for jz4780 H. Nikolaus Schaller
2021-11-24 21:29 ` [PATCH v9 5/8] MIPS: DTS: jz4780: Account for Synopsys HDMI driver and LCD controllers H. Nikolaus Schaller
2021-11-24 21:29 ` [PATCH v9 6/8] MIPS: DTS: CI20: Add DT nodes for HDMI setup H. Nikolaus Schaller
2021-11-24 21:29 ` [PATCH v9 7/8] MIPS: defconfig: CI20: configure for DRM_DW_HDMI_JZ4780 H. Nikolaus Schaller
2021-11-24 21:29 ` [PATCH v9 8/8] [RFC] MIPS: DTS: Ingenic: adjust register size to available registers H. Nikolaus Schaller

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