From patchwork Wed Feb 21 05:35:28 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manikandan Muralidharan X-Patchwork-Id: 13564993 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6E358C48BC3 for ; Wed, 21 Feb 2024 06:45:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=AcrkjJrB5mZ7l7qWTApr78O9oeMdzi/NfqUj3eP28JA=; b=yFIsc/DjiuvCLy bUy8IEoRRJk5VdBdt/5NV3AlSRSGRLSv+uUSvZVNyEMgxQHm6yPyWABWSwbR27awMi/e5GxvHSE0c JRtYWVFb67bg4zfrzTRbSMKsZzVxHi7E+O+TtNP93IF5i5X36Ih2JH5xzQ4AoYM9X43mCNizojAgi gmJTwR1++0gy2CUKV+HEzzVwtM/q7ksC1eQYI9ELS2iyB2V7dWCpr+u7+JZfx/eaJcNmk+KauhTLp wS7mIUxvc0Cx6O06+M7BXiUz7zuzfV+0qd3qlY2YxKwyuDeZuuXLQ0ILwWqFShRIorM2CHnZSZFh9 bdmIbBOBXEchV80YeRVQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rcgMW-0000000HMsb-1FSH; Wed, 21 Feb 2024 06:45:48 +0000 Received: from esa.microchip.iphmx.com ([68.232.154.123]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rcfHZ-0000000HDQ5-0PVg for linux-arm-kernel@lists.infradead.org; Wed, 21 Feb 2024 05:36:45 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1708493796; x=1740029796; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=cf1ERUI8W0KgkYZjZBGlnJlrKnBS1Q66fpRRN2HpQMY=; b=2CgxBzI/pfFFfTBok6rQmyshmB46F2Pnxb7lUVUgvdojYxAuna9RgpWE mWU71E5I9W+Son35IxuYo/2P4N/JvITitr7k92OYYBDEd7FXDz51Ngi/o +RqTpzgbDWqoN2qkEhuVcQl7qDCFbRReMG5i7YFpHpPVyoF9pVzWYG8Eo RHLDKpvMXQqB3vYSFSBqYoNwznnpoqB9v+7vPpHyzl8+ltZN1e1fiUJQL IwalWlhZ34UWxHecBMc/Bv6OuMe2jKUcJj9GvB281U1o6ScLqno4UWTRi tU4XQs0aZl+iHrLqQlN64mFpCssTJXQKcSVwA2w29nM4mVy5zL7355nDi g==; X-CSE-ConnectionGUID: hHmStJYWTlGjipB6P76eDg== X-CSE-MsgGUID: MU072H37SamG08299npIXg== X-IronPort-AV: E=Sophos;i="6.06,174,1705388400"; d="scan'208";a="183844452" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa6.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 20 Feb 2024 22:36:25 -0700 Received: from chn-vm-ex02.mchp-main.com (10.10.85.144) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Tue, 20 Feb 2024 22:36:18 -0700 Received: from che-lt-i67131.microchip.com (10.10.85.11) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server id 15.1.2507.35 via Frontend Transport; Tue, 20 Feb 2024 22:36:09 -0700 From: Manikandan Muralidharan To: , , , , , , , , , , , , , CC: , , , , , , , , , Durai Manickam KR Subject: [PATCH v8 4/7] drm: atmel-hlcdc: add DPI mode support for XLCDC Date: Wed, 21 Feb 2024 11:05:28 +0530 Message-ID: <20240221053531.12701-5-manikandan.m@microchip.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240221053531.12701-1-manikandan.m@microchip.com> References: <20240221053531.12701-1-manikandan.m@microchip.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240220_213637_277563_0B571D4F X-CRM114-Status: GOOD ( 15.37 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add support for Display Pixel Interface (DPI) Compatible Mode support in atmel-hlcdc driver for XLCDC IP along with legacy pixel mapping. DPI mode BIT is configured in LCDC_CFG5 register. Signed-off-by: Manikandan Muralidharan [durai.manickamkr@microchip.com: update DPI mode bit using is_xlcdc flag] Signed-off-by: Durai Manickam KR --- .../gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c | 21 +++++++++++++++++-- 1 file changed, 19 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c index 98a98b5fca85..fdd3a6bc0f79 100644 --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c @@ -30,10 +30,12 @@ * * @base: base CRTC state * @output_mode: RGBXXX output mode + * @dpi: output DPI mode */ struct atmel_hlcdc_crtc_state { struct drm_crtc_state base; unsigned int output_mode; + u8 dpi; }; static inline struct atmel_hlcdc_crtc_state * @@ -170,6 +172,8 @@ static void atmel_hlcdc_crtc_mode_set_nofb(struct drm_crtc *c) if (adj->flags & DRM_MODE_FLAG_NHSYNC) cfg |= ATMEL_HLCDC_HSPOL; + } else { + cfg |= state->dpi << 11; } regmap_update_bits(regmap, ATMEL_HLCDC_CFG(5), @@ -177,7 +181,9 @@ static void atmel_hlcdc_crtc_mode_set_nofb(struct drm_crtc *c) ATMEL_HLCDC_VSPDLYS | ATMEL_HLCDC_VSPDLYE | ATMEL_HLCDC_DISPPOL | ATMEL_HLCDC_DISPDLY | ATMEL_HLCDC_VSPSU | ATMEL_HLCDC_VSPHO | - ATMEL_HLCDC_GUARDTIME_MASK | ATMEL_HLCDC_MODE_MASK, + ATMEL_HLCDC_GUARDTIME_MASK | + (crtc->dc->desc->is_xlcdc ? ATMEL_XLCDC_MODE_MASK | + ATMEL_XLCDC_DPI : ATMEL_HLCDC_MODE_MASK), cfg); clk_disable_unprepare(crtc->dc->hlcdc->sys_clk); @@ -380,7 +386,15 @@ static int atmel_hlcdc_crtc_select_output_mode(struct drm_crtc_state *state) hstate = drm_crtc_state_to_atmel_hlcdc_crtc_state(state); hstate->output_mode = fls(output_fmts) - 1; - + if (crtc->dc->desc->is_xlcdc) { + /* check if MIPI DPI bit needs to be set */ + if (fls(output_fmts) > 3) { + hstate->output_mode -= 4; + hstate->dpi = 1; + } else { + hstate->dpi = 0; + } + } return 0; } @@ -484,6 +498,7 @@ static struct drm_crtc_state * atmel_hlcdc_crtc_duplicate_state(struct drm_crtc *crtc) { struct atmel_hlcdc_crtc_state *state, *cur; + struct atmel_hlcdc_crtc *c = drm_crtc_to_atmel_hlcdc_crtc(crtc); if (WARN_ON(!crtc->state)) return NULL; @@ -495,6 +510,8 @@ atmel_hlcdc_crtc_duplicate_state(struct drm_crtc *crtc) cur = drm_crtc_state_to_atmel_hlcdc_crtc_state(crtc->state); state->output_mode = cur->output_mode; + if (c->dc->desc->is_xlcdc) + state->dpi = cur->dpi; return &state->base; }