From patchwork Fri Jul 6 13:32:47 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 1165961 Return-Path: X-Original-To: patchwork-linux-media@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id 8D3643FE80 for ; Fri, 6 Jul 2012 13:32:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751701Ab2GFNc5 (ORCPT ); Fri, 6 Jul 2012 09:32:57 -0400 Received: from perceval.ideasonboard.com ([95.142.166.194]:53535 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750748Ab2GFNcr (ORCPT ); Fri, 6 Jul 2012 09:32:47 -0400 Received: from avalon.ideasonboard.com (unknown [91.178.165.100]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id BF0C37D0B; Fri, 6 Jul 2012 15:32:44 +0200 (CEST) From: Laurent Pinchart To: linux-media@vger.kernel.org Cc: Jean-Philippe Francois , Sakari Ailus Subject: [PATCH v2 4/6] omap3isp: preview: Reorder configuration functions Date: Fri, 6 Jul 2012 15:32:47 +0200 Message-Id: <1341581569-8292-5-git-send-email-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 1.7.8.6 In-Reply-To: <1341581569-8292-1-git-send-email-laurent.pinchart@ideasonboard.com> References: <1341581569-8292-1-git-send-email-laurent.pinchart@ideasonboard.com> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Reorder the configuration and enable functions to match the parameters order. Signed-off-by: Laurent Pinchart --- drivers/media/video/omap3isp/isppreview.c | 452 ++++++++++++++-------------- 1 files changed, 226 insertions(+), 226 deletions(-) diff --git a/drivers/media/video/omap3isp/isppreview.c b/drivers/media/video/omap3isp/isppreview.c index 1ac48b7..c325e79 100644 --- a/drivers/media/video/omap3isp/isppreview.c +++ b/drivers/media/video/omap3isp/isppreview.c @@ -157,64 +157,53 @@ static u32 luma_enhance_table[] = { }; /* - * preview_enable_invalaw - Enable/disable Inverse A-Law decompression - */ -static void preview_enable_invalaw(struct isp_prev_device *prev, bool enable) -{ - struct isp_device *isp = to_isp_device(prev); - - if (enable) - isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_WIDTH | ISPPRV_PCR_INVALAW); - else - isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_WIDTH | ISPPRV_PCR_INVALAW); -} - -/* - * preview_enable_drkframe_capture - Enable/disable Dark Frame Capture + * preview_config_luma_enhancement - Configure the Luminance Enhancement table */ static void -preview_enable_drkframe_capture(struct isp_prev_device *prev, bool enable) +preview_config_luma_enhancement(struct isp_prev_device *prev, + const struct prev_params *params) { struct isp_device *isp = to_isp_device(prev); + const struct omap3isp_prev_luma *yt = ¶ms->luma; + unsigned int i; - if (enable) - isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_DRKFCAP); - else - isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_DRKFCAP); + isp_reg_writel(isp, ISPPRV_YENH_TABLE_ADDR, + OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR); + for (i = 0; i < OMAP3ISP_PREV_YENH_TBL_SIZE; i++) { + isp_reg_writel(isp, yt->table[i], + OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_DATA); + } } /* - * preview_enable_drkframe - Enable/disable Dark Frame Subtraction + * preview_enable_luma_enhancement - Enable/disable Luminance Enhancement */ -static void preview_enable_drkframe(struct isp_prev_device *prev, bool enable) +static void +preview_enable_luma_enhancement(struct isp_prev_device *prev, bool enable) { struct isp_device *isp = to_isp_device(prev); if (enable) isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_DRKFEN); + ISPPRV_PCR_YNENHEN); else isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_DRKFEN); + ISPPRV_PCR_YNENHEN); } /* - * preview_enable_hmed - Enable/disable the Horizontal Median Filter + * preview_enable_invalaw - Enable/disable Inverse A-Law decompression */ -static void preview_enable_hmed(struct isp_prev_device *prev, bool enable) +static void preview_enable_invalaw(struct isp_prev_device *prev, bool enable) { struct isp_device *isp = to_isp_device(prev); if (enable) isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_HMEDEN); + ISPPRV_PCR_WIDTH | ISPPRV_PCR_INVALAW); else isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_HMEDEN); + ISPPRV_PCR_WIDTH | ISPPRV_PCR_INVALAW); } /* @@ -233,46 +222,18 @@ static void preview_config_hmed(struct isp_prev_device *prev, } /* - * preview_config_noisefilter - Configure the Noise Filter - */ -static void -preview_config_noisefilter(struct isp_prev_device *prev, - const struct prev_params *params) -{ - struct isp_device *isp = to_isp_device(prev); - const struct omap3isp_prev_nf *nf = ¶ms->nf; - unsigned int i; - - isp_reg_writel(isp, nf->spread, OMAP3_ISP_IOMEM_PREV, ISPPRV_NF); - isp_reg_writel(isp, ISPPRV_NF_TABLE_ADDR, - OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR); - for (i = 0; i < OMAP3ISP_PREV_NF_TBL_SIZE; i++) { - isp_reg_writel(isp, nf->table[i], - OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_DATA); - } -} - -/* - * preview_config_dcor - Configure Couplet Defect Correction + * preview_enable_hmed - Enable/disable the Horizontal Median Filter */ -static void -preview_config_dcor(struct isp_prev_device *prev, - const struct prev_params *params) +static void preview_enable_hmed(struct isp_prev_device *prev, bool enable) { struct isp_device *isp = to_isp_device(prev); - const struct omap3isp_prev_dcor *dcor = ¶ms->dcor; - isp_reg_writel(isp, dcor->detect_correct[0], - OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR0); - isp_reg_writel(isp, dcor->detect_correct[1], - OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR1); - isp_reg_writel(isp, dcor->detect_correct[2], - OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR2); - isp_reg_writel(isp, dcor->detect_correct[3], - OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR3); - isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_DCCOUP, - dcor->couplet_mode_en ? ISPPRV_PCR_DCCOUP : 0); + if (enable) + isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_HMEDEN); + else + isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_HMEDEN); } /* @@ -305,55 +266,6 @@ preview_config_cfa(struct isp_prev_device *prev, } /* - * preview_config_gammacorrn - Configure the Gamma Correction tables - */ -static void -preview_config_gammacorrn(struct isp_prev_device *prev, - const struct prev_params *params) -{ - struct isp_device *isp = to_isp_device(prev); - const struct omap3isp_prev_gtables *gt = ¶ms->gamma; - unsigned int i; - - isp_reg_writel(isp, ISPPRV_REDGAMMA_TABLE_ADDR, - OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR); - for (i = 0; i < OMAP3ISP_PREV_GAMMA_TBL_SIZE; i++) - isp_reg_writel(isp, gt->red[i], OMAP3_ISP_IOMEM_PREV, - ISPPRV_SET_TBL_DATA); - - isp_reg_writel(isp, ISPPRV_GREENGAMMA_TABLE_ADDR, - OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR); - for (i = 0; i < OMAP3ISP_PREV_GAMMA_TBL_SIZE; i++) - isp_reg_writel(isp, gt->green[i], OMAP3_ISP_IOMEM_PREV, - ISPPRV_SET_TBL_DATA); - - isp_reg_writel(isp, ISPPRV_BLUEGAMMA_TABLE_ADDR, - OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR); - for (i = 0; i < OMAP3ISP_PREV_GAMMA_TBL_SIZE; i++) - isp_reg_writel(isp, gt->blue[i], OMAP3_ISP_IOMEM_PREV, - ISPPRV_SET_TBL_DATA); -} - -/* - * preview_config_luma_enhancement - Configure the Luminance Enhancement table - */ -static void -preview_config_luma_enhancement(struct isp_prev_device *prev, - const struct prev_params *params) -{ - struct isp_device *isp = to_isp_device(prev); - const struct omap3isp_prev_luma *yt = ¶ms->luma; - unsigned int i; - - isp_reg_writel(isp, ISPPRV_YENH_TABLE_ADDR, - OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR); - for (i = 0; i < OMAP3ISP_PREV_YENH_TBL_SIZE; i++) { - isp_reg_writel(isp, yt->table[i], - OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_DATA); - } -} - -/* * preview_config_chroma_suppression - Configure Chroma Suppression */ static void @@ -370,72 +282,6 @@ preview_config_chroma_suppression(struct isp_prev_device *prev, } /* - * preview_enable_noisefilter - Enable/disable the Noise Filter - */ -static void -preview_enable_noisefilter(struct isp_prev_device *prev, bool enable) -{ - struct isp_device *isp = to_isp_device(prev); - - if (enable) - isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_NFEN); - else - isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_NFEN); -} - -/* - * preview_enable_dcor - Enable/disable Couplet Defect Correction - */ -static void preview_enable_dcor(struct isp_prev_device *prev, bool enable) -{ - struct isp_device *isp = to_isp_device(prev); - - if (enable) - isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_DCOREN); - else - isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_DCOREN); -} - -/* - * preview_enable_gammabypass - Enable/disable Gamma Bypass - * - * When gamma bypass is enabled, the output of the gamma correction is the 8 MSB - * of the 10-bit input . - */ -static void -preview_enable_gammabypass(struct isp_prev_device *prev, bool enable) -{ - struct isp_device *isp = to_isp_device(prev); - - if (enable) - isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_GAMMA_BYPASS); - else - isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_GAMMA_BYPASS); -} - -/* - * preview_enable_luma_enhancement - Enable/disable Luminance Enhancement - */ -static void -preview_enable_luma_enhancement(struct isp_prev_device *prev, bool enable) -{ - struct isp_device *isp = to_isp_device(prev); - - if (enable) - isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_YNENHEN); - else - isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, - ISPPRV_PCR_YNENHEN); -} - -/* * preview_enable_chroma_suppression - Enable/disable Chrominance Suppression */ static void @@ -579,26 +425,175 @@ preview_config_csc(struct isp_prev_device *prev, } /* - * preview_update_contrast - Updates the contrast. - * @contrast: Pointer to hold the current programmed contrast value. + * preview_config_yc_range - Configure the max and min Y and C values + */ +static void +preview_config_yc_range(struct isp_prev_device *prev, + const struct prev_params *params) +{ + struct isp_device *isp = to_isp_device(prev); + const struct omap3isp_prev_yclimit *yc = ¶ms->yclimit; + + isp_reg_writel(isp, + yc->maxC << ISPPRV_SETUP_YC_MAXC_SHIFT | + yc->maxY << ISPPRV_SETUP_YC_MAXY_SHIFT | + yc->minC << ISPPRV_SETUP_YC_MINC_SHIFT | + yc->minY << ISPPRV_SETUP_YC_MINY_SHIFT, + OMAP3_ISP_IOMEM_PREV, ISPPRV_SETUP_YC); +} + +/* + * preview_config_dcor - Configure Couplet Defect Correction + */ +static void +preview_config_dcor(struct isp_prev_device *prev, + const struct prev_params *params) +{ + struct isp_device *isp = to_isp_device(prev); + const struct omap3isp_prev_dcor *dcor = ¶ms->dcor; + + isp_reg_writel(isp, dcor->detect_correct[0], + OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR0); + isp_reg_writel(isp, dcor->detect_correct[1], + OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR1); + isp_reg_writel(isp, dcor->detect_correct[2], + OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR2); + isp_reg_writel(isp, dcor->detect_correct[3], + OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR3); + isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_DCCOUP, + dcor->couplet_mode_en ? ISPPRV_PCR_DCCOUP : 0); +} + +/* + * preview_enable_dcor - Enable/disable Couplet Defect Correction + */ +static void preview_enable_dcor(struct isp_prev_device *prev, bool enable) +{ + struct isp_device *isp = to_isp_device(prev); + + if (enable) + isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_DCOREN); + else + isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_DCOREN); +} + +/* + * preview_enable_gammabypass - Enable/disable Gamma Bypass * - * Value should be programmed before enabling the module. + * When gamma bypass is enabled, the output of the gamma correction is the 8 MSB + * of the 10-bit input . */ static void -preview_update_contrast(struct isp_prev_device *prev, u8 contrast) +preview_enable_gammabypass(struct isp_prev_device *prev, bool enable) { - struct prev_params *params; - unsigned long flags; + struct isp_device *isp = to_isp_device(prev); - spin_lock_irqsave(&prev->params.lock, flags); - params = (prev->params.active & OMAP3ISP_PREV_CONTRAST) - ? &prev->params.params[0] : &prev->params.params[1]; + if (enable) + isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_GAMMA_BYPASS); + else + isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_GAMMA_BYPASS); +} - if (params->contrast != (contrast * ISPPRV_CONTRAST_UNITS)) { - params->contrast = contrast * ISPPRV_CONTRAST_UNITS; - params->update |= OMAP3ISP_PREV_CONTRAST; +/* + * preview_enable_drkframe_capture - Enable/disable Dark Frame Capture + */ +static void +preview_enable_drkframe_capture(struct isp_prev_device *prev, bool enable) +{ + struct isp_device *isp = to_isp_device(prev); + + if (enable) + isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_DRKFCAP); + else + isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_DRKFCAP); +} + +/* + * preview_enable_drkframe - Enable/disable Dark Frame Subtraction + */ +static void preview_enable_drkframe(struct isp_prev_device *prev, bool enable) +{ + struct isp_device *isp = to_isp_device(prev); + + if (enable) + isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_DRKFEN); + else + isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_DRKFEN); +} + +/* + * preview_config_noisefilter - Configure the Noise Filter + */ +static void +preview_config_noisefilter(struct isp_prev_device *prev, + const struct prev_params *params) +{ + struct isp_device *isp = to_isp_device(prev); + const struct omap3isp_prev_nf *nf = ¶ms->nf; + unsigned int i; + + isp_reg_writel(isp, nf->spread, OMAP3_ISP_IOMEM_PREV, ISPPRV_NF); + isp_reg_writel(isp, ISPPRV_NF_TABLE_ADDR, + OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR); + for (i = 0; i < OMAP3ISP_PREV_NF_TBL_SIZE; i++) { + isp_reg_writel(isp, nf->table[i], + OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_DATA); } - spin_unlock_irqrestore(&prev->params.lock, flags); +} + +/* + * preview_enable_noisefilter - Enable/disable the Noise Filter + */ +static void +preview_enable_noisefilter(struct isp_prev_device *prev, bool enable) +{ + struct isp_device *isp = to_isp_device(prev); + + if (enable) + isp_reg_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_NFEN); + else + isp_reg_clr(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, + ISPPRV_PCR_NFEN); +} + +/* + * preview_config_gammacorrn - Configure the Gamma Correction tables + */ +static void +preview_config_gammacorrn(struct isp_prev_device *prev, + const struct prev_params *params) +{ + struct isp_device *isp = to_isp_device(prev); + const struct omap3isp_prev_gtables *gt = ¶ms->gamma; + unsigned int i; + + isp_reg_writel(isp, ISPPRV_REDGAMMA_TABLE_ADDR, + OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR); + for (i = 0; i < OMAP3ISP_PREV_GAMMA_TBL_SIZE; i++) + isp_reg_writel(isp, gt->red[i], OMAP3_ISP_IOMEM_PREV, + ISPPRV_SET_TBL_DATA); + + isp_reg_writel(isp, ISPPRV_GREENGAMMA_TABLE_ADDR, + OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR); + for (i = 0; i < OMAP3ISP_PREV_GAMMA_TBL_SIZE; i++) + isp_reg_writel(isp, gt->green[i], OMAP3_ISP_IOMEM_PREV, + ISPPRV_SET_TBL_DATA); + + isp_reg_writel(isp, ISPPRV_BLUEGAMMA_TABLE_ADDR, + OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR); + for (i = 0; i < OMAP3ISP_PREV_GAMMA_TBL_SIZE; i++) + isp_reg_writel(isp, gt->blue[i], OMAP3_ISP_IOMEM_PREV, + ISPPRV_SET_TBL_DATA); } /* @@ -618,57 +613,62 @@ preview_config_contrast(struct isp_prev_device *prev, } /* - * preview_update_brightness - Updates the brightness in preview module. - * @brightness: Pointer to hold the current programmed brightness value. + * preview_config_brightness - Configure the Brightness + */ +static void +preview_config_brightness(struct isp_prev_device *prev, + const struct prev_params *params) +{ + struct isp_device *isp = to_isp_device(prev); + + isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_CNT_BRT, + 0xff << ISPPRV_CNT_BRT_BRT_SHIFT, + params->brightness << ISPPRV_CNT_BRT_BRT_SHIFT); +} + +/* + * preview_update_contrast - Updates the contrast. + * @contrast: Pointer to hold the current programmed contrast value. * + * Value should be programmed before enabling the module. */ static void -preview_update_brightness(struct isp_prev_device *prev, u8 brightness) +preview_update_contrast(struct isp_prev_device *prev, u8 contrast) { struct prev_params *params; unsigned long flags; spin_lock_irqsave(&prev->params.lock, flags); - params = (prev->params.active & OMAP3ISP_PREV_BRIGHTNESS) + params = (prev->params.active & OMAP3ISP_PREV_CONTRAST) ? &prev->params.params[0] : &prev->params.params[1]; - if (params->brightness != (brightness * ISPPRV_BRIGHT_UNITS)) { - params->brightness = brightness * ISPPRV_BRIGHT_UNITS; - params->update |= OMAP3ISP_PREV_BRIGHTNESS; + if (params->contrast != (contrast * ISPPRV_CONTRAST_UNITS)) { + params->contrast = contrast * ISPPRV_CONTRAST_UNITS; + params->update |= OMAP3ISP_PREV_CONTRAST; } spin_unlock_irqrestore(&prev->params.lock, flags); } /* - * preview_config_brightness - Configure the Brightness + * preview_update_brightness - Updates the brightness in preview module. + * @brightness: Pointer to hold the current programmed brightness value. + * */ static void -preview_config_brightness(struct isp_prev_device *prev, - const struct prev_params *params) +preview_update_brightness(struct isp_prev_device *prev, u8 brightness) { - struct isp_device *isp = to_isp_device(prev); - - isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_PREV, ISPPRV_CNT_BRT, - 0xff << ISPPRV_CNT_BRT_BRT_SHIFT, - params->brightness << ISPPRV_CNT_BRT_BRT_SHIFT); -} + struct prev_params *params; + unsigned long flags; -/* - * preview_config_yc_range - Configure the max and min Y and C values - */ -static void -preview_config_yc_range(struct isp_prev_device *prev, - const struct prev_params *params) -{ - struct isp_device *isp = to_isp_device(prev); - const struct omap3isp_prev_yclimit *yc = ¶ms->yclimit; + spin_lock_irqsave(&prev->params.lock, flags); + params = (prev->params.active & OMAP3ISP_PREV_BRIGHTNESS) + ? &prev->params.params[0] : &prev->params.params[1]; - isp_reg_writel(isp, - yc->maxC << ISPPRV_SETUP_YC_MAXC_SHIFT | - yc->maxY << ISPPRV_SETUP_YC_MAXY_SHIFT | - yc->minC << ISPPRV_SETUP_YC_MINC_SHIFT | - yc->minY << ISPPRV_SETUP_YC_MINY_SHIFT, - OMAP3_ISP_IOMEM_PREV, ISPPRV_SETUP_YC); + if (params->brightness != (brightness * ISPPRV_BRIGHT_UNITS)) { + params->brightness = brightness * ISPPRV_BRIGHT_UNITS; + params->update |= OMAP3ISP_PREV_BRIGHTNESS; + } + spin_unlock_irqrestore(&prev->params.lock, flags); } static u32