From patchwork Wed Sep 27 09:47:30 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manikandan Muralidharan X-Patchwork-Id: 13400558 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 E5124E810AD for ; Wed, 27 Sep 2023 09:49:15 +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=nkkTPN4LY8ustnxOTHEH0AX7sbmRqVNJ11MW4I65EhM=; b=niCDnEsIDrpuGa sdugTga+IksrD1/yVxSG5j/x7FfxzRwIP4QAl4JIjkbbCUMLEi+pi0NWquQTeOMg87/9ZW8Z/0Zgs FujXjjS1xzHS9K21M1M+2B6DoFcD1lcZ5ElA6200dEBf0oLuRSNc8kovsg+MA2dRGK1AoI1WKRlhE rLrniD9sZfu7mZpijBiissBtRfzusVfBkIWsFWjzG6R5RQGUvSWv68d489SjgS2NtBMpyMfY3eZNp 52/QzKm8JZTOiicJWDI9avMM3VvzzOJVXY3JAneCGowqzHceYnyzPW6oEYP/xqxmebwjgwlyUJ+1v JmTTBzzdxLXkzsS6FpOw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qlRA6-000WTB-1C; Wed, 27 Sep 2023 09:48:54 +0000 Received: from esa.microchip.iphmx.com ([68.232.154.123]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qlR9q-000WH2-0s for linux-arm-kernel@lists.infradead.org; Wed, 27 Sep 2023 09:48:39 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1695808118; x=1727344118; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=LW3pFUStHKEnZSyxevXGQeuoxSERTH8HcpzSlQGWuPU=; b=XznpfSUCILNTIZVHt9dpXfY/uuIDMmqEvN/Q4nGb0Famk78yTE1X0vSG 4waxPpy58+mZI7Rou6OikeePdo3c68GBA4aoe78fsvfgbv5bBEAtQ/Xyw bWC+udJHYl+PoOYUyP8jYWOHsEGuaZrbt3fXCIZEkDBhfCj3skIOoBWYK isu5eRCg+itMbOXJhVHUmW2EGoZ9VEDpALb3bgQc9g2rQogYUXeGCs5Qm NlNgiOv5s96x8TbUwHpsazdSbmV1nwAk7XUftSoXKHsgnFF4crRffRxrV ACaq+BHLW/CYu5Yj4seaVaXzqa/xDQIBUWHQHq5QbH0FM/I6OM4Xaxp9I Q==; X-CSE-ConnectionGUID: HUyDEQftQiqlXs675yxA9g== X-CSE-MsgGUID: Qe/4iiIIRLKjZWh9tBm1rQ== X-ThreatScanner-Verdict: Negative X-IronPort-AV: E=Sophos;i="6.03,179,1694761200"; d="scan'208";a="173847082" 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; 27 Sep 2023 02:48:37 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.85.151) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.21; Wed, 27 Sep 2023 02:48:30 -0700 Received: from che-lt-i67131.microchip.com (10.10.85.11) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.2507.21 via Frontend Transport; Wed, 27 Sep 2023 02:48:23 -0700 From: Manikandan Muralidharan To: , , , , , , , , , CC: , , , , , , , Manikandan Muralidharan , Durai Manickam KR Subject: [PATCH v6 5/7] drm: atmel-hlcdc: add DPI mode support for XLCDC Date: Wed, 27 Sep 2023 15:17:30 +0530 Message-ID: <20230927094732.490228-6-manikandan.m@microchip.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230927094732.490228-1-manikandan.m@microchip.com> References: <20230927094732.490228-1-manikandan.m@microchip.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230927_024838_372590_E2BAA6A8 X-CRM114-Status: GOOD ( 15.67 ) 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 1ac31c0c474a..1899be2eb6a3 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 * @@ -164,6 +166,8 @@ static void atmel_hlcdc_crtc_mode_set_nofb(struct drm_crtc *c) state = drm_crtc_state_to_atmel_hlcdc_crtc_state(c->state); cfg = state->output_mode << 8; + if (is_xlcdc) + cfg |= state->dpi << 11; if (!is_xlcdc && (adj->flags & DRM_MODE_FLAG_NVSYNC)) cfg |= ATMEL_HLCDC_VSPOL; @@ -176,7 +180,9 @@ 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 | + (is_xlcdc ? ATMEL_XLCDC_MODE_MASK | + ATMEL_XLCDC_DPI : ATMEL_HLCDC_MODE_MASK), cfg); clk_disable_unprepare(crtc->dc->hlcdc->sys_clk); @@ -374,7 +380,15 @@ 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; } @@ -478,6 +492,7 @@ 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; @@ -489,6 +504,8 @@ 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; }