From patchwork Tue Oct 8 23:00:36 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ezequiel Garcia X-Patchwork-Id: 11180115 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8215113BD for ; Tue, 8 Oct 2019 23:01:02 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 69BDC21721 for ; Tue, 8 Oct 2019 23:01:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 69BDC21721 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=collabora.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 40ADB6E8A5; Tue, 8 Oct 2019 23:01:01 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e3e3]) by gabe.freedesktop.org (Postfix) with ESMTPS id C432B6E8A5 for ; Tue, 8 Oct 2019 23:00:59 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: ezequiel) with ESMTPSA id 9A47928C299 From: Ezequiel Garcia To: dri-devel@lists.freedesktop.org Subject: [PATCH v4 1/3] dt-bindings: display: rockchip: document VOP gamma LUT address Date: Tue, 8 Oct 2019 20:00:36 -0300 Message-Id: <20191008230038.24037-2-ezequiel@collabora.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20191008230038.24037-1-ezequiel@collabora.com> References: <20191008230038.24037-1-ezequiel@collabora.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, Jacopo Mondi , linux-kernel@vger.kernel.org, Rob Herring , Douglas Anderson , linux-rockchip@lists.infradead.org, Boris Brezillon , Sean Paul , kernel@collabora.com, Ezequiel Garcia Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Add the register specifier description for an optional gamma LUT address. Signed-off-by: Ezequiel Garcia Reviewed-by: Douglas Anderson Reviewed-by: Rob Herring --- Changes from v3: * None. Changes from v2: * None. Changes from v1: * Drop reg-names, suggested by Doug. --- .../devicetree/bindings/display/rockchip/rockchip-vop.txt | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip-vop.txt b/Documentation/devicetree/bindings/display/rockchip/rockchip-vop.txt index 4f58c5a2d195..8b3a5f514205 100644 --- a/Documentation/devicetree/bindings/display/rockchip/rockchip-vop.txt +++ b/Documentation/devicetree/bindings/display/rockchip/rockchip-vop.txt @@ -20,6 +20,10 @@ Required properties: "rockchip,rk3228-vop"; "rockchip,rk3328-vop"; +- reg: Must contain one entry corresponding to the base address and length + of the register space. Can optionally contain a second entry + corresponding to the CRTC gamma LUT address. + - interrupts: should contain a list of all VOP IP block interrupts in the order: VSYNC, LCD_SYSTEM. The interrupt specifier format depends on the interrupt controller used. @@ -48,7 +52,7 @@ Example: SoC specific DT entry: vopb: vopb@ff930000 { compatible = "rockchip,rk3288-vop"; - reg = <0xff930000 0x19c>; + reg = <0x0 0xff930000 0x0 0x19c>, <0x0 0xff931000 0x0 0x1000>; interrupts = ; clocks = <&cru ACLK_VOP0>, <&cru DCLK_VOP0>, <&cru HCLK_VOP0>; clock-names = "aclk_vop", "dclk_vop", "hclk_vop"; From patchwork Tue Oct 8 23:00:37 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ezequiel Garcia X-Patchwork-Id: 11180121 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A002D13BD for ; Tue, 8 Oct 2019 23:01:07 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 889F821871 for ; Tue, 8 Oct 2019 23:01:07 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 889F821871 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=collabora.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E2D0E6E8A8; Tue, 8 Oct 2019 23:01:06 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [46.235.227.227]) by gabe.freedesktop.org (Postfix) with ESMTPS id 814F86E8A6 for ; Tue, 8 Oct 2019 23:01:05 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: ezequiel) with ESMTPSA id 3E45C28D5C0 From: Ezequiel Garcia To: dri-devel@lists.freedesktop.org Subject: [PATCH v4 2/3] drm/rockchip: Add optional support for CRTC gamma LUT Date: Tue, 8 Oct 2019 20:00:37 -0300 Message-Id: <20191008230038.24037-3-ezequiel@collabora.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20191008230038.24037-1-ezequiel@collabora.com> References: <20191008230038.24037-1-ezequiel@collabora.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, Jacopo Mondi , linux-kernel@vger.kernel.org, Rob Herring , Douglas Anderson , linux-rockchip@lists.infradead.org, Boris Brezillon , Sean Paul , kernel@collabora.com, Ezequiel Garcia Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Add an optional CRTC gamma LUT support, and enable it on RK3288. This is currently enabled via a separate address resource, which needs to be specified in the devicetree. The address resource is required because on some SoCs, such as RK3288, the LUT address is after the MMU address, and the latter is supported by a different driver. This prevents the DRM driver from requesting an entire register space. The current implementation works for RGB 10-bit tables, as that is what seems to work on RK3288. Signed-off-by: Ezequiel Garcia --- Changes from v3: * Move to atomic_enable and atomic_begin, as discussed with Sean Paul. * Dropped the Reviewed-bys. Changes from v2: * None. Changes from v1: * drop explicit linear LUT after finding a proper way to disable gamma correction. * avoid setting gamma is the CRTC is not active. * s/int/unsigned int as suggested by Jacopo. * only enable color management and set gamma size if gamma LUT is supported, suggested by Doug. * drop the reg-names usage, and instead just use indexed reg specifiers, suggested by Doug. Changes from RFC: * Request (an optional) address resource for the LUT. * Drop support for RK3399, which doesn't seem to work out of the box and needs more research. * Support pass-thru setting when GAMMA_LUT is NULL. * Add a check for the gamma size, as suggested by Ilia. * Move gamma setting to atomic_commit_tail, as pointed out by Jacopo/Laurent, is the correct way. --- drivers/gpu/drm/rockchip/rockchip_drm_fb.c | 1 + drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 125 ++++++++++++++++++++ drivers/gpu/drm/rockchip/rockchip_drm_vop.h | 5 + drivers/gpu/drm/rockchip/rockchip_vop_reg.c | 2 + 4 files changed, 133 insertions(+) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fb.c b/drivers/gpu/drm/rockchip/rockchip_drm_fb.c index ca01234c037c..697ee04b85cf 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_fb.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_fb.c @@ -17,6 +17,7 @@ #include "rockchip_drm_drv.h" #include "rockchip_drm_fb.h" #include "rockchip_drm_gem.h" +#include "rockchip_drm_vop.h" static const struct drm_framebuffer_funcs rockchip_drm_fb_funcs = { .destroy = drm_gem_fb_destroy, diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index 613404f86668..85c1269a1218 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -139,6 +139,7 @@ struct vop { uint32_t *regsbak; void __iomem *regs; + void __iomem *lut_regs; /* physical map length of vop register */ uint32_t len; @@ -1048,6 +1049,84 @@ static bool vop_crtc_mode_fixup(struct drm_crtc *crtc, return true; } +static bool vop_dsp_lut_is_enable(struct vop *vop) +{ + return vop_read_reg(vop, 0, &vop->data->common->dsp_lut_en); +} + +static void vop_crtc_write_gamma_lut(struct vop *vop, struct drm_crtc *crtc) +{ + struct drm_color_lut *lut = crtc->state->gamma_lut->data; + unsigned int i; + + for (i = 0; i < crtc->gamma_size; i++) { + u32 word; + + word = (drm_color_lut_extract(lut[i].red, 10) << 20) | + (drm_color_lut_extract(lut[i].green, 10) << 10) | + drm_color_lut_extract(lut[i].blue, 10); + writel(word, vop->lut_regs + i * 4); + } +} + +static void vop_crtc_gamma_set(struct vop *vop, struct drm_crtc *crtc, + struct drm_crtc_state *old_crtc_state) +{ + unsigned int idle; + int ret; + + /* + * In order to write the LUT to the internal memory, + * we need to first make sure the dsp_lut_en bit is cleared. + */ + spin_lock(&vop->reg_lock); + VOP_REG_SET(vop, common, dsp_lut_en, 0); + vop_cfg_done(vop); + spin_unlock(&vop->reg_lock); + + /* + * If the CRTC is not active, dsp_lut_en will not get cleared. + * Apparently we still need to do the above step to for + * gamma correction to be disabled. + */ + if (!crtc->state->active) + return; + + ret = readx_poll_timeout(vop_dsp_lut_is_enable, vop, + idle, !idle, 5, 30 * 1000); + if (ret) { + DRM_DEV_ERROR(vop->dev, "display LUT RAM enable timeout!\n"); + return; + } + + if (crtc->state->gamma_lut && + (!old_crtc_state->gamma_lut || (crtc->state->gamma_lut->base.id != + old_crtc_state->gamma_lut->base.id))) { + + spin_lock(&vop->reg_lock); + + vop_crtc_write_gamma_lut(vop, crtc); + VOP_REG_SET(vop, common, dsp_lut_en, 1); + vop_cfg_done(vop); + + spin_unlock(&vop->reg_lock); + } +} + +static void vop_crtc_atomic_begin(struct drm_crtc *crtc, + struct drm_crtc_state *old_crtc_state) +{ + struct vop *vop = to_vop(crtc); + + /* + * Only update GAMMA if the 'active' flag is not changed, + * otherwise it's updated by .atomic_enable. + */ + if (vop->lut_regs && crtc->state->color_mgmt_changed && + !crtc->state->active_changed) + vop_crtc_gamma_set(vop, crtc, old_crtc_state); +} + static void vop_crtc_atomic_enable(struct drm_crtc *crtc, struct drm_crtc_state *old_state) { @@ -1075,6 +1154,14 @@ static void vop_crtc_atomic_enable(struct drm_crtc *crtc, return; } + /* + * If we have a GAMMA LUT in the state, then let's make sure + * it's updated. We might be coming out of suspend, + * which means the LUT internal memory needs to be re-written. + */ + if (vop->lut_regs && crtc->state->gamma_lut) + vop_crtc_gamma_set(vop, crtc, old_state); + mutex_lock(&vop->vop_lock); WARN_ON(vop->event); @@ -1191,6 +1278,26 @@ static void vop_wait_for_irq_handler(struct vop *vop) synchronize_irq(vop->irq); } +static int vop_crtc_atomic_check(struct drm_crtc *crtc, + struct drm_crtc_state *crtc_state) +{ + struct vop *vop = to_vop(crtc); + + if (vop->lut_regs && crtc_state->color_mgmt_changed && + crtc_state->gamma_lut) { + unsigned int len; + + len = drm_color_lut_size(crtc_state->gamma_lut); + if (len != crtc->gamma_size) { + DRM_DEBUG_KMS("Invalid LUT size; got %d, expected %d\n", + len, crtc->gamma_size); + return -EINVAL; + } + } + + return 0; +} + static void vop_crtc_atomic_flush(struct drm_crtc *crtc, struct drm_crtc_state *old_crtc_state) { @@ -1243,6 +1350,8 @@ static void vop_crtc_atomic_flush(struct drm_crtc *crtc, static const struct drm_crtc_helper_funcs vop_crtc_helper_funcs = { .mode_fixup = vop_crtc_mode_fixup, + .atomic_check = vop_crtc_atomic_check, + .atomic_begin = vop_crtc_atomic_begin, .atomic_flush = vop_crtc_atomic_flush, .atomic_enable = vop_crtc_atomic_enable, .atomic_disable = vop_crtc_atomic_disable, @@ -1361,6 +1470,7 @@ static const struct drm_crtc_funcs vop_crtc_funcs = { .disable_vblank = vop_crtc_disable_vblank, .set_crc_source = vop_crtc_set_crc_source, .verify_crc_source = vop_crtc_verify_crc_source, + .gamma_set = drm_atomic_helper_legacy_gamma_set, }; static void vop_fb_unref_worker(struct drm_flip_work *work, void *val) @@ -1518,6 +1628,10 @@ static int vop_create_crtc(struct vop *vop) goto err_cleanup_planes; drm_crtc_helper_add(crtc, &vop_crtc_helper_funcs); + if (vop->lut_regs) { + drm_mode_crtc_set_gamma_size(crtc, vop_data->lut_size); + drm_crtc_enable_color_mgmt(crtc, 0, false, vop_data->lut_size); + } /* * Create drm_planes for overlay windows with possible_crtcs restricted @@ -1822,6 +1936,17 @@ static int vop_bind(struct device *dev, struct device *master, void *data) if (IS_ERR(vop->regs)) return PTR_ERR(vop->regs); + res = platform_get_resource(pdev, IORESOURCE_MEM, 1); + if (res) { + if (!vop_data->lut_size) { + DRM_DEV_ERROR(dev, "no gamma LUT size defined\n"); + return -EINVAL; + } + vop->lut_regs = devm_ioremap_resource(dev, res); + if (IS_ERR(vop->lut_regs)) + return PTR_ERR(vop->lut_regs); + } + vop->regsbak = devm_kzalloc(dev, vop->len, GFP_KERNEL); if (!vop->regsbak) return -ENOMEM; diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h index 2149a889c29d..8192c90d48c4 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h @@ -7,6 +7,8 @@ #ifndef _ROCKCHIP_DRM_VOP_H #define _ROCKCHIP_DRM_VOP_H +#include + /* * major: IP major version, used for IP structure * minor: big feature change under same structure @@ -67,6 +69,7 @@ struct vop_common { struct vop_reg dither_down_mode; struct vop_reg dither_down_en; struct vop_reg dither_up; + struct vop_reg dsp_lut_en; struct vop_reg gate_en; struct vop_reg mmu_en; struct vop_reg out_mode; @@ -170,6 +173,7 @@ struct vop_data { const struct vop_win_yuv2yuv_data *win_yuv2yuv; const struct vop_win_data *win; unsigned int win_size; + unsigned int lut_size; #define VOP_FEATURE_OUTPUT_RGB10 BIT(0) #define VOP_FEATURE_INTERNAL_RGB BIT(1) @@ -373,4 +377,5 @@ static inline int scl_vop_cal_lb_mode(int width, bool is_yuv) } extern const struct component_ops vop_component_ops; + #endif /* _ROCKCHIP_DRM_VOP_H */ diff --git a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c index d1494be14471..42ddcb698c82 100644 --- a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c +++ b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c @@ -598,6 +598,7 @@ static const struct vop_common rk3288_common = { .dither_down_en = VOP_REG(RK3288_DSP_CTRL1, 0x1, 2), .pre_dither_down = VOP_REG(RK3288_DSP_CTRL1, 0x1, 1), .dither_up = VOP_REG(RK3288_DSP_CTRL1, 0x1, 6), + .dsp_lut_en = VOP_REG(RK3288_DSP_CTRL1, 0x1, 0), .data_blank = VOP_REG(RK3288_DSP_CTRL0, 0x1, 19), .dsp_blank = VOP_REG(RK3288_DSP_CTRL0, 0x3, 18), .out_mode = VOP_REG(RK3288_DSP_CTRL0, 0xf, 0), @@ -646,6 +647,7 @@ static const struct vop_data rk3288_vop = { .output = &rk3288_output, .win = rk3288_vop_win_data, .win_size = ARRAY_SIZE(rk3288_vop_win_data), + .lut_size = 1024, }; static const int rk3368_vop_intrs[] = { From patchwork Tue Oct 8 23:00:38 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ezequiel Garcia X-Patchwork-Id: 11180123 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 28CC513BD for ; Tue, 8 Oct 2019 23:01:11 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 116AD21721 for ; Tue, 8 Oct 2019 23:01:11 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 116AD21721 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=collabora.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 403F66E8AE; Tue, 8 Oct 2019 23:01:10 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [46.235.227.227]) by gabe.freedesktop.org (Postfix) with ESMTPS id D871C6E8AE for ; Tue, 8 Oct 2019 23:01:08 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: ezequiel) with ESMTPSA id C0F9D28D5F1 From: Ezequiel Garcia To: dri-devel@lists.freedesktop.org Subject: [PATCH v4 3/3] ARM: dts: rockchip: Add RK3288 VOP gamma LUT address Date: Tue, 8 Oct 2019 20:00:38 -0300 Message-Id: <20191008230038.24037-4-ezequiel@collabora.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20191008230038.24037-1-ezequiel@collabora.com> References: <20191008230038.24037-1-ezequiel@collabora.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, Jacopo Mondi , linux-kernel@vger.kernel.org, Rob Herring , Douglas Anderson , linux-rockchip@lists.infradead.org, Boris Brezillon , Sean Paul , kernel@collabora.com, Ezequiel Garcia Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" RK3288 SoC VOPs have optional support Gamma LUT setting, which requires specifying the Gamma LUT address in the devicetree. Signed-off-by: Ezequiel Garcia Reviewed-by: Douglas Anderson --- Changes from v3: * None. Changes from v2: * None. Changes from v1: * Drop reg-names, as suggested by Doug. --- arch/arm/boot/dts/rk3288.dtsi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi index cc893e154fe5..c6fc633ace80 100644 --- a/arch/arm/boot/dts/rk3288.dtsi +++ b/arch/arm/boot/dts/rk3288.dtsi @@ -1023,7 +1023,7 @@ vopb: vop@ff930000 { compatible = "rockchip,rk3288-vop"; - reg = <0x0 0xff930000 0x0 0x19c>; + reg = <0x0 0xff930000 0x0 0x19c>, <0x0 0xff931000 0x0 0x1000>; interrupts = ; clocks = <&cru ACLK_VOP0>, <&cru DCLK_VOP0>, <&cru HCLK_VOP0>; clock-names = "aclk_vop", "dclk_vop", "hclk_vop"; @@ -1073,7 +1073,7 @@ vopl: vop@ff940000 { compatible = "rockchip,rk3288-vop"; - reg = <0x0 0xff940000 0x0 0x19c>; + reg = <0x0 0xff940000 0x0 0x19c>, <0x0 0xff941000 0x0 0x1000>; interrupts = ; clocks = <&cru ACLK_VOP1>, <&cru DCLK_VOP1>, <&cru HCLK_VOP1>; clock-names = "aclk_vop", "dclk_vop", "hclk_vop";