From nobody Sat Oct 4 04:56:46 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F38E0275AE6 for ; Wed, 20 Aug 2025 14:02:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755698541; cv=none; b=MmUoUIvTOt9BqfPsfGWEDGLLpp2G8p3AuXXRaSnQM3L3PPwqsIYaLzrmN/jw5B+yNH6FuEuOQOoMAvILXy1F1pYaHmLxFkcMckcsMCvxgCOcpQvOKqeWTaJl+M4yyENxvlomtVX5IfCXqIT9QjU3dwB7U3PLoUJwbIoXHrZ8U4Q= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755698541; c=relaxed/simple; bh=NPKE0HzA70wlsc3DhdEGt6RObPp32ugchgS24Nhjfqc=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=jNGCJh4/cWKw3ftkiGhVOZ5AoUg51WJmF49Eb+evOuTtBOw7Vpu3RuJ7cAwGCCWzWYwAd/gBSAF3A2spnpd6JnJA6imhafS1IYRM9U6YOE2Pvdg1jg55CNzDHpmDE/hHfqUNt6tQb1qitnxV1ejBeK42NAEh7YBJJBhOzIAvAXI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=eyDTCNW1; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="eyDTCNW1" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7B6F7C4CEE7; Wed, 20 Aug 2025 14:02:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1755698540; bh=NPKE0HzA70wlsc3DhdEGt6RObPp32ugchgS24Nhjfqc=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=eyDTCNW1qws1n3jaCS7qXvN4ke3vb7HK6sJyxhs7xW2YIDg4upsMipqf4chm0zGC8 fjy59+HFTOhk9mfbrdLqDa6NMOsIspgScpx+oDlxvpP8AT1nSkuUuSUyj7ZGKDAxHQ LFCcGyyDQkGJR2pV1pSTxG37TTxj0nw4Vtyl5wZfL667ol1iyaZ20Ahg3SIQHabEdo JGdH6MtpTmEHxIhGnSM7Hehvq2qHWD97X7WG7LlLBactyQtXMqPXBGrBc9fufzVSzV i84x/KhrtxHq6qrEGy97W2Caikh8sYmobzFyeMAd+eC+JfNvY5ESiOEyjW07QT60na Zf2Q09vCb86yQ== From: Maxime Ripard Date: Wed, 20 Aug 2025 16:01:47 +0200 Subject: [PATCH v2 07/14] drm/tidss: dispc: Switch REG_GET to using a mask Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250820-drm-tidss-field-api-v2-7-43cab671c648@kernel.org> References: <20250820-drm-tidss-field-api-v2-0-43cab671c648@kernel.org> In-Reply-To: <20250820-drm-tidss-field-api-v2-0-43cab671c648@kernel.org> To: Jyri Sarha , Tomi Valkeinen , Maarten Lankhorst , Thomas Zimmermann , David Airlie , Simona Vetter Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Maxime Ripard X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=2796; i=mripard@kernel.org; h=from:subject:message-id; bh=NPKE0HzA70wlsc3DhdEGt6RObPp32ugchgS24Nhjfqc=; b=owGbwMvMwCmsHn9OcpHtvjLG02pJDBlLrwZ9C2JYHPY2SiZeuyJx3fGWg8H1ui8zHY5ceX9NR mVRfK9vx1QWBmFOBlkxRZYnMmGnl7cvrnKwX/kDZg4rE8gQBi5OAZjIbC/Geu8PJ7331OYxNyq8 eZnO+W6qy67Ln0ssyhh09S+civGcW6O/KthwQtqzw1ZMewQDi2UfMDYc3HX07xUBgfWuXW+6pmn cckpnMGz9fGb9t+2zp8U/3qtfta9gcenu3m670kpJR+WCBVcB X-Developer-Key: i=mripard@kernel.org; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D The REG_GET function takes the start and end bits as parameter and will generate a mask out of them. This makes it difficult to share the masks between callers, since we now need two arguments and to keep them consistent. Let's change REG_GET to take the mask as an argument instead, and let the caller create the mask. Eventually, this mask will be moved to a define. Signed-off-by: Maxime Ripard --- drivers/gpu/drm/tidss/tidss_dispc.c | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/tidss/tidss_dispc.c b/drivers/gpu/drm/tidss/ti= dss_dispc.c index fef56aed3f6edb6630d079f354821ada5fad327d..807ab0e0afc7f95efe55764dcb0= 8da695fb85963 100644 --- a/drivers/gpu/drm/tidss/tidss_dispc.c +++ b/drivers/gpu/drm/tidss/tidss_dispc.c @@ -607,13 +607,12 @@ void tidss_disable_oldi(struct tidss_device *tidss, u= 32 hw_videoport) /* * TRM gives bitfields as start:end, where start is the higher bit * number. For example 7:0 */ =20 -#define REG_GET(dispc, idx, start, end) \ - ((u32)FIELD_GET(GENMASK((start), (end)), \ - dispc_read((dispc), (idx)))) +#define REG_GET(dispc, idx, mask) \ + ((u32)FIELD_GET((mask), dispc_read((dispc), (idx)))) =20 #define REG_FLD_MOD(dispc, idx, val, start, end) \ ({ \ struct dispc_device *_dispc =3D (dispc); \ u32 _idx =3D (idx); \ @@ -2807,30 +2806,30 @@ int dispc_runtime_resume(struct dispc_device *dispc) { dev_dbg(dispc->dev, "resume\n"); =20 clk_prepare_enable(dispc->fclk); =20 - if (REG_GET(dispc, DSS_SYSSTATUS, 0, 0) =3D=3D 0) + if (REG_GET(dispc, DSS_SYSSTATUS, GENMASK(0, 0)) =3D=3D 0) dev_warn(dispc->dev, "DSS FUNC RESET not done!\n"); =20 dev_dbg(dispc->dev, "OMAP DSS7 rev 0x%x\n", dispc_read(dispc, DSS_REVISION)); =20 dev_dbg(dispc->dev, "VP RESETDONE %d,%d,%d\n", - REG_GET(dispc, DSS_SYSSTATUS, 1, 1), - REG_GET(dispc, DSS_SYSSTATUS, 2, 2), - REG_GET(dispc, DSS_SYSSTATUS, 3, 3)); + REG_GET(dispc, DSS_SYSSTATUS, GENMASK(1, 1)), + REG_GET(dispc, DSS_SYSSTATUS, GENMASK(2, 2)), + REG_GET(dispc, DSS_SYSSTATUS, GENMASK(3, 3))); =20 if (dispc->feat->subrev =3D=3D DISPC_AM625 || dispc->feat->subrev =3D=3D DISPC_AM65X) dev_dbg(dispc->dev, "OLDI RESETDONE %d,%d,%d\n", - REG_GET(dispc, DSS_SYSSTATUS, 5, 5), - REG_GET(dispc, DSS_SYSSTATUS, 6, 6), - REG_GET(dispc, DSS_SYSSTATUS, 7, 7)); + REG_GET(dispc, DSS_SYSSTATUS, GENMASK(5, 5)), + REG_GET(dispc, DSS_SYSSTATUS, GENMASK(6, 6)), + REG_GET(dispc, DSS_SYSSTATUS, GENMASK(7, 7))); =20 dev_dbg(dispc->dev, "DISPC IDLE %d\n", - REG_GET(dispc, DSS_SYSSTATUS, 9, 9)); + REG_GET(dispc, DSS_SYSSTATUS, GENMASK(9, 9))); =20 dispc_initial_config(dispc); =20 dispc->is_enabled =3D true; =20 --=20 2.50.1