From mboxrd@z Thu Jan 1 00:00:00 1970 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C7970C28CF5 for ; Wed, 26 Jan 2022 14:58:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242458AbiAZO6a (ORCPT ); Wed, 26 Jan 2022 09:58:30 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37436 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242462AbiAZO63 (ORCPT ); Wed, 26 Jan 2022 09:58:29 -0500 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0B25AC06173B for ; Wed, 26 Jan 2022 06:58:29 -0800 (PST) Received: from dude02.hi.pengutronix.de ([2001:67c:670:100:1d::28]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nCjkc-0005fZ-An; Wed, 26 Jan 2022 15:58:22 +0100 Received: from sha by dude02.hi.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1nCjka-002l7I-SX; Wed, 26 Jan 2022 15:58:20 +0100 From: Sascha Hauer To: dri-devel@lists.freedesktop.org Cc: linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, kernel@pengutronix.de, Andy Yan , Benjamin Gaignard , Michael Riesch , Sandy Huang , =?UTF-8?q?Heiko=20St=C3=BCbner?= , Peter Geis , Sascha Hauer Subject: [PATCH 25/27] clk: rk3568: Add CLK_SET_RATE_PARENT to the HDMI reference clock Date: Wed, 26 Jan 2022 15:55:47 +0100 Message-Id: <20220126145549.617165-26-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220126145549.617165-1-s.hauer@pengutronix.de> References: <20220126145549.617165-1-s.hauer@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::28 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: devicetree@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On the rk3568 we have this (simplified) situation: .--------. .-----. .---------. -| hpll |--.--| /n |----|dclk_vop0|- `--------´ | `-----´ `---------´ | .-----. .---------. `--| /m |----|dclk_vop1|- | `-----´ `---------´ | .---------. `-------------|hdmi_ref |- `---------´ For the HDMI to work the HDMI reference clock needs to be the same as the pixel clock which means the dividers have be set to one. The last patch removed the CLK_SET_RATE_PARENT flag from the pixel clocks which means the hpll is not changed on pixel clock changes. In order to allow the HDMI controller to set a suitable PLL rate we now add the CLK_SET_RATE_PARENT flag to the HDMI reference clock. With this the flow becomes: 1) HDMI controller driver sets the rate to its pixel clock which means hpll is set to the pixel clock 2) VOP2 driver sets dclk_vop[012] to the pixel clock. As this can't change the hpll clock anymore this means only the divider is adjusted to the desired value of dividing by one. Signed-off-by: Sascha Hauer --- drivers/clk/rockchip/clk-rk3568.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/rockchip/clk-rk3568.c b/drivers/clk/rockchip/clk-rk3568.c index 7687c62d1fa8..63dfbeeeb06d 100644 --- a/drivers/clk/rockchip/clk-rk3568.c +++ b/drivers/clk/rockchip/clk-rk3568.c @@ -1568,7 +1568,7 @@ static struct rockchip_clk_branch rk3568_clk_pmu_branches[] __initdata = { RK3568_PMU_CLKGATE_CON(2), 14, GFLAGS), GATE(XIN_OSC0_EDPPHY_G, "xin_osc0_edpphy_g", "xin24m", 0, RK3568_PMU_CLKGATE_CON(2), 15, GFLAGS), - MUX(CLK_HDMI_REF, "clk_hdmi_ref", clk_hdmi_ref_p, 0, + MUX(CLK_HDMI_REF, "clk_hdmi_ref", clk_hdmi_ref_p, CLK_SET_RATE_PARENT, RK3568_PMU_CLKSEL_CON(8), 7, 1, MFLAGS), }; -- 2.30.2 From mboxrd@z Thu Jan 1 00:00:00 1970 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id B3466C2BA4C for ; Wed, 26 Jan 2022 14:59:11 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0CE3710E761; Wed, 26 Jan 2022 14:59:05 +0000 (UTC) Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by gabe.freedesktop.org (Postfix) with ESMTPS id BA27510E676 for ; Wed, 26 Jan 2022 14:58:24 +0000 (UTC) Received: from dude02.hi.pengutronix.de ([2001:67c:670:100:1d::28]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nCjkc-0005fZ-An; Wed, 26 Jan 2022 15:58:22 +0100 Received: from sha by dude02.hi.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1nCjka-002l7I-SX; Wed, 26 Jan 2022 15:58:20 +0100 From: Sascha Hauer To: dri-devel@lists.freedesktop.org Subject: [PATCH 25/27] clk: rk3568: Add CLK_SET_RATE_PARENT to the HDMI reference clock Date: Wed, 26 Jan 2022 15:55:47 +0100 Message-Id: <20220126145549.617165-26-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220126145549.617165-1-s.hauer@pengutronix.de> References: <20220126145549.617165-1-s.hauer@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::28 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: dri-devel@lists.freedesktop.org X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Benjamin Gaignard , Peter Geis , Sascha Hauer , Sandy Huang , linux-rockchip@lists.infradead.org, Michael Riesch , kernel@pengutronix.de, Andy Yan , linux-arm-kernel@lists.infradead.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On the rk3568 we have this (simplified) situation: .--------. .-----. .---------. -| hpll |--.--| /n |----|dclk_vop0|- `--------´ | `-----´ `---------´ | .-----. .---------. `--| /m |----|dclk_vop1|- | `-----´ `---------´ | .---------. `-------------|hdmi_ref |- `---------´ For the HDMI to work the HDMI reference clock needs to be the same as the pixel clock which means the dividers have be set to one. The last patch removed the CLK_SET_RATE_PARENT flag from the pixel clocks which means the hpll is not changed on pixel clock changes. In order to allow the HDMI controller to set a suitable PLL rate we now add the CLK_SET_RATE_PARENT flag to the HDMI reference clock. With this the flow becomes: 1) HDMI controller driver sets the rate to its pixel clock which means hpll is set to the pixel clock 2) VOP2 driver sets dclk_vop[012] to the pixel clock. As this can't change the hpll clock anymore this means only the divider is adjusted to the desired value of dividing by one. Signed-off-by: Sascha Hauer --- drivers/clk/rockchip/clk-rk3568.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/rockchip/clk-rk3568.c b/drivers/clk/rockchip/clk-rk3568.c index 7687c62d1fa8..63dfbeeeb06d 100644 --- a/drivers/clk/rockchip/clk-rk3568.c +++ b/drivers/clk/rockchip/clk-rk3568.c @@ -1568,7 +1568,7 @@ static struct rockchip_clk_branch rk3568_clk_pmu_branches[] __initdata = { RK3568_PMU_CLKGATE_CON(2), 14, GFLAGS), GATE(XIN_OSC0_EDPPHY_G, "xin_osc0_edpphy_g", "xin24m", 0, RK3568_PMU_CLKGATE_CON(2), 15, GFLAGS), - MUX(CLK_HDMI_REF, "clk_hdmi_ref", clk_hdmi_ref_p, 0, + MUX(CLK_HDMI_REF, "clk_hdmi_ref", clk_hdmi_ref_p, CLK_SET_RATE_PARENT, RK3568_PMU_CLKSEL_CON(8), 7, 1, MFLAGS), }; -- 2.30.2 From mboxrd@z Thu Jan 1 00:00:00 1970 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 DCE78C3526D for ; 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Wed, 26 Jan 2022 15:01:09 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nCjke-00C4AF-Cp for linux-arm-kernel@lists.infradead.org; Wed, 26 Jan 2022 14:58:27 +0000 Received: from dude02.hi.pengutronix.de ([2001:67c:670:100:1d::28]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nCjkc-0005fZ-An; Wed, 26 Jan 2022 15:58:22 +0100 Received: from sha by dude02.hi.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1nCjka-002l7I-SX; Wed, 26 Jan 2022 15:58:20 +0100 From: Sascha Hauer To: dri-devel@lists.freedesktop.org Cc: linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, kernel@pengutronix.de, Andy Yan , Benjamin Gaignard , Michael Riesch , Sandy Huang , =?UTF-8?q?Heiko=20St=C3=BCbner?= , Peter Geis , Sascha Hauer Subject: [PATCH 25/27] clk: rk3568: Add CLK_SET_RATE_PARENT to the HDMI reference clock Date: Wed, 26 Jan 2022 15:55:47 +0100 Message-Id: <20220126145549.617165-26-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220126145549.617165-1-s.hauer@pengutronix.de> References: <20220126145549.617165-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::28 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); 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Wed, 26 Jan 2022 14:58:39 +0000 Received: from dude02.hi.pengutronix.de ([2001:67c:670:100:1d::28]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nCjkc-0005fZ-An; Wed, 26 Jan 2022 15:58:22 +0100 Received: from sha by dude02.hi.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1nCjka-002l7I-SX; Wed, 26 Jan 2022 15:58:20 +0100 From: Sascha Hauer To: dri-devel@lists.freedesktop.org Cc: linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, kernel@pengutronix.de, Andy Yan , Benjamin Gaignard , Michael Riesch , Sandy Huang , =?UTF-8?q?Heiko=20St=C3=BCbner?= , Peter Geis , Sascha Hauer Subject: [PATCH 25/27] clk: rk3568: Add CLK_SET_RATE_PARENT to the HDMI reference clock Date: Wed, 26 Jan 2022 15:55:47 +0100 Message-Id: <20220126145549.617165-26-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220126145549.617165-1-s.hauer@pengutronix.de> References: <20220126145549.617165-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::28 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-rockchip@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220126_145830_061314_79D1C3C8 X-CRM114-Status: GOOD ( 16.41 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org T24gdGhlIHJrMzU2OCB3ZSBoYXZlIHRoaXMgKHNpbXBsaWZpZWQpIHNpdHVhdGlvbjoKCiAuLS0t LS0tLS0uICAgICAuLS0tLS0uICAgIC4tLS0tLS0tLS0uCi18IGhwbGwgICB8LS0uLS18IC9uICB8 LS0tLXxkY2xrX3ZvcDB8LQogYC0tLS0tLS0twrQgIHwgIGAtLS0tLcK0ICAgIGAtLS0tLS0tLS3C tAogICAgICAgICAgICAgfCAgLi0tLS0tLiAgICAuLS0tLS0tLS0tLgogICAgICAgICAgICAgYC0t fCAvbSAgfC0tLS18ZGNsa192b3AxfC0KICAgICAgICAgICAgIHwgIGAtLS0tLcK0ICAgIGAtLS0t LS0tLS3CtAogICAgICAgICAgICAgfCAgICAgICAgICAgICAuLS0tLS0tLS0tLgogICAgICAgICAg ICAgYC0tLS0tLS0tLS0tLS18aGRtaV9yZWYgfC0KICAgICAgICAgICAgICAgICAgICAgICAgICAg YC0tLS0tLS0tLcK0CgpGb3IgdGhlIEhETUkgdG8gd29yayB0aGUgSERNSSByZWZlcmVuY2UgY2xv Y2sgbmVlZHMgdG8gYmUgdGhlIHNhbWUgYXMgdGhlCnBpeGVsIGNsb2NrIHdoaWNoIG1lYW5zIHRo ZSBkaXZpZGVycyBoYXZlIGJlIHNldCB0byBvbmUuIFRoZSBsYXN0IHBhdGNoIHJlbW92ZWQKdGhl IENMS19TRVRfUkFURV9QQVJFTlQgZmxhZyBmcm9tIHRoZSBwaXhlbCBjbG9ja3Mgd2hpY2ggbWVh bnMgdGhlIGhwbGwgaXMgbm90CmNoYW5nZWQgb24gcGl4ZWwgY2xvY2sgY2hhbmdlcy4gSW4gb3Jk ZXIgdG8gYWxsb3cgdGhlIEhETUkgY29udHJvbGxlciB0bwpzZXQgYSBzdWl0YWJsZSBQTEwgcmF0 ZSB3ZSBub3cgYWRkIHRoZSBDTEtfU0VUX1JBVEVfUEFSRU5UIGZsYWcgdG8gdGhlCkhETUkgcmVm ZXJlbmNlIGNsb2NrLiBXaXRoIHRoaXMgdGhlIGZsb3cgYmVjb21lczoKCjEpIEhETUkgY29udHJv bGxlciBkcml2ZXIgc2V0cyB0aGUgcmF0ZSB0byBpdHMgcGl4ZWwgY2xvY2sgd2hpY2ggbWVhbnMK ICAgaHBsbCBpcyBzZXQgdG8gdGhlIHBpeGVsIGNsb2NrCjIpIFZPUDIgZHJpdmVyIHNldHMgZGNs a192b3BbMDEyXSB0byB0aGUgcGl4ZWwgY2xvY2suIEFzIHRoaXMgY2FuJ3QgY2hhbmdlCiAgIHRo ZSBocGxsIGNsb2NrIGFueW1vcmUgdGhpcyBtZWFucyBvbmx5IHRoZSBkaXZpZGVyIGlzIGFkanVz dGVkIHRvIHRoZQogICBkZXNpcmVkIHZhbHVlIG9mIGRpdmlkaW5nIGJ5IG9uZS4KClNpZ25lZC1v ZmYtYnk6IFNhc2NoYSBIYXVlciA8cy5oYXVlckBwZW5ndXRyb25peC5kZT4KLS0tCiBkcml2ZXJz L2Nsay9yb2NrY2hpcC9jbGstcmszNTY4LmMgfCAyICstCiAxIGZpbGUgY2hhbmdlZCwgMSBpbnNl cnRpb24oKyksIDEgZGVsZXRpb24oLSkKCmRpZmYgLS1naXQgYS9kcml2ZXJzL2Nsay9yb2NrY2hp cC9jbGstcmszNTY4LmMgYi9kcml2ZXJzL2Nsay9yb2NrY2hpcC9jbGstcmszNTY4LmMKaW5kZXgg NzY4N2M2MmQxZmE4Li42M2RmYmVlZWIwNmQgMTAwNjQ0Ci0tLSBhL2RyaXZlcnMvY2xrL3JvY2tj aGlwL2Nsay1yazM1NjguYworKysgYi9kcml2ZXJzL2Nsay9yb2NrY2hpcC9jbGstcmszNTY4LmMK QEAgLTE1NjgsNyArMTU2OCw3IEBAIHN0YXRpYyBzdHJ1Y3Qgcm9ja2NoaXBfY2xrX2JyYW5jaCBy azM1NjhfY2xrX3BtdV9icmFuY2hlc1tdIF9faW5pdGRhdGEgPSB7CiAJCQlSSzM1NjhfUE1VX0NM S0dBVEVfQ09OKDIpLCAxNCwgR0ZMQUdTKSwKIAlHQVRFKFhJTl9PU0MwX0VEUFBIWV9HLCAieGlu X29zYzBfZWRwcGh5X2ciLCAieGluMjRtIiwgMCwKIAkJCVJLMzU2OF9QTVVfQ0xLR0FURV9DT04o MiksIDE1LCBHRkxBR1MpLAotCU1VWChDTEtfSERNSV9SRUYsICJjbGtfaGRtaV9yZWYiLCBjbGtf aGRtaV9yZWZfcCwgMCwKKwlNVVgoQ0xLX0hETUlfUkVGLCAiY2xrX2hkbWlfcmVmIiwgY2xrX2hk bWlfcmVmX3AsIENMS19TRVRfUkFURV9QQVJFTlQsCiAJCQlSSzM1NjhfUE1VX0NMS1NFTF9DT04o OCksIDcsIDEsIE1GTEFHUyksCiB9OwogCi0tIAoyLjMwLjIKCgpfX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fXwpMaW51eC1yb2NrY2hpcCBtYWlsaW5nIGxpc3QK TGludXgtcm9ja2NoaXBAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFk Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LXJvY2tjaGlwCg==