All of lore.kernel.org
 help / color / mirror / Atom feed
From: Kishon Vijay Abraham I <kishon@ti.com>
To: Kishon Vijay Abraham I <kishon@ti.com>,
	Vinod Koul <vkoul@kernel.org>, Rob Herring <robh+dt@kernel.org>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	Swapnil Jakhade <sjakhade@cadence.com>
Cc: <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
	Lokesh Vutla <lokeshvutla@ti.com>
Subject: [PATCH v6 13/13] phy: cadence: sierra: Enable pll_cmnlc and pll_cmnlc1 clocks
Date: Wed, 10 Mar 2021 21:15:58 +0530	[thread overview]
Message-ID: <20210310154558.32078-14-kishon@ti.com> (raw)
In-Reply-To: <20210310154558.32078-1-kishon@ti.com>

Get pll_cmnlc and pll_cmnlc1 optional clocks and enable them.
This will enable REFRCV/1 in case the pll_cmnlc/1 takes input
from REFRCV/1 respectively.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
 drivers/phy/cadence/phy-cadence-sierra.c | 40 ++++++++++++++++++++++--
 1 file changed, 37 insertions(+), 3 deletions(-)

diff --git a/drivers/phy/cadence/phy-cadence-sierra.c b/drivers/phy/cadence/phy-cadence-sierra.c
index 039ca10db59d..5c68e31c5939 100644
--- a/drivers/phy/cadence/phy-cadence-sierra.c
+++ b/drivers/phy/cadence/phy-cadence-sierra.c
@@ -768,6 +768,40 @@ static int cdns_sierra_phy_get_clocks(struct cdns_sierra_phy *sp,
 	return 0;
 }
 
+static int cdns_sierra_phy_enable_clocks(struct cdns_sierra_phy *sp)
+{
+	int ret;
+
+	ret = clk_prepare_enable(sp->input_clks[PHY_CLK]);
+	if (ret)
+		return ret;
+
+	ret = clk_prepare_enable(sp->output_clks[CDNS_SIERRA_PLL_CMNLC]);
+	if (ret)
+		goto err_pll_cmnlc;
+
+	ret = clk_prepare_enable(sp->output_clks[CDNS_SIERRA_PLL_CMNLC1]);
+	if (ret)
+		goto err_pll_cmnlc1;
+
+	return 0;
+
+err_pll_cmnlc1:
+	clk_disable_unprepare(sp->output_clks[CDNS_SIERRA_PLL_CMNLC]);
+
+err_pll_cmnlc:
+	clk_disable_unprepare(sp->input_clks[PHY_CLK]);
+
+	return ret;
+}
+
+static void cdns_sierra_phy_disable_clocks(struct cdns_sierra_phy *sp)
+{
+	clk_disable_unprepare(sp->output_clks[CDNS_SIERRA_PLL_CMNLC1]);
+	clk_disable_unprepare(sp->output_clks[CDNS_SIERRA_PLL_CMNLC]);
+	clk_disable_unprepare(sp->input_clks[PHY_CLK]);
+}
+
 static int cdns_sierra_phy_get_resets(struct cdns_sierra_phy *sp,
 				      struct device *dev)
 {
@@ -848,7 +882,7 @@ static int cdns_sierra_phy_probe(struct platform_device *pdev)
 	if (ret)
 		goto unregister_clk;
 
-	ret = clk_prepare_enable(sp->input_clks[PHY_CLK]);
+	ret = cdns_sierra_phy_enable_clocks(sp);
 	if (ret)
 		goto unregister_clk;
 
@@ -925,7 +959,7 @@ static int cdns_sierra_phy_probe(struct platform_device *pdev)
 		reset_control_put(sp->phys[i].lnk_rst);
 	of_node_put(child);
 clk_disable:
-	clk_disable_unprepare(sp->input_clks[PHY_CLK]);
+	cdns_sierra_phy_disable_clocks(sp);
 	reset_control_assert(sp->apb_rst);
 unregister_clk:
 	cdns_sierra_clk_unregister(sp);
@@ -941,6 +975,7 @@ static int cdns_sierra_phy_remove(struct platform_device *pdev)
 	reset_control_assert(phy->apb_rst);
 	pm_runtime_disable(&pdev->dev);
 
+	cdns_sierra_phy_disable_clocks(phy);
 	/*
 	 * The device level resets will be put automatically.
 	 * Need to put the subnode resets here though.
@@ -950,7 +985,6 @@ static int cdns_sierra_phy_remove(struct platform_device *pdev)
 		reset_control_put(phy->phys[i].lnk_rst);
 	}
 
-	clk_disable_unprepare(phy->input_clks[PHY_CLK]);
 	cdns_sierra_clk_unregister(phy);
 
 	return 0;
-- 
2.17.1


  parent reply	other threads:[~2021-03-10 15:47 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-10 15:45 [PATCH v6 00/13] PHY: Add support in Sierra to use external clock Kishon Vijay Abraham I
2021-03-10 15:45 ` [PATCH v6 01/13] phy: cadence: Sierra: Fix PHY power_on sequence Kishon Vijay Abraham I
2021-03-10 15:45 ` [PATCH v6 02/13] phy: ti: j721e-wiz: Invoke wiz_init() before of_platform_device_create() Kishon Vijay Abraham I
2021-03-15  5:47   ` Swapnil Kashinath Jakhade
2021-03-10 15:45 ` [PATCH v6 03/13] phy: cadence: cadence-sierra: Create PHY only for "phy" or "link" sub-nodes Kishon Vijay Abraham I
2021-03-15  5:50   ` Swapnil Kashinath Jakhade
2021-03-10 15:45 ` [PATCH v6 04/13] phy: ti: j721e-wiz: Get PHY properties only for "phy" or "link" subnode Kishon Vijay Abraham I
2021-03-10 15:45 ` [PATCH v6 05/13] phy: cadence: cadence-sierra: Move all clk_get_*() to a separate function Kishon Vijay Abraham I
2021-03-15  5:50   ` Swapnil Kashinath Jakhade
2021-03-10 15:45 ` [PATCH v6 06/13] phy: cadence: cadence-sierra: Move all reset_control_get*() " Kishon Vijay Abraham I
2021-03-10 15:45 ` [PATCH v6 07/13] phy: cadence: cadence-sierra: Explicitly request exclusive reset control Kishon Vijay Abraham I
2021-03-10 15:45 ` [PATCH v6 08/13] phy: cadence-torrent: Use a common header file for Cadence SERDES Kishon Vijay Abraham I
2021-03-15  5:51   ` Swapnil Kashinath Jakhade
2021-03-10 15:45 ` [PATCH v6 09/13] phy: cadence: cadence-sierra: Add array of input clocks in "struct cdns_sierra_phy" Kishon Vijay Abraham I
2021-03-15  5:52   ` Swapnil Kashinath Jakhade
2021-03-10 15:45 ` [PATCH v6 10/13] phy: cadence: cadence-sierra: Add missing clk_disable_unprepare() in .remove callback Kishon Vijay Abraham I
2021-03-10 15:45 ` [PATCH v6 11/13] dt-bindings: phy: phy-cadence-sierra: Add binding to model Sierra as clock provider Kishon Vijay Abraham I
2021-03-10 15:45 ` [PATCH v6 12/13] phy: cadence: phy-cadence-sierra: Model PLL_CMNLC and PLL_CMNLC1 as clocks (mux clocks) Kishon Vijay Abraham I
2021-03-15  6:15   ` Swapnil Kashinath Jakhade
2021-03-10 15:45 ` Kishon Vijay Abraham I [this message]
2021-03-15  5:54   ` [PATCH v6 13/13] phy: cadence: sierra: Enable pll_cmnlc and pll_cmnlc1 clocks Swapnil Kashinath Jakhade

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210310154558.32078-14-kishon@ti.com \
    --to=kishon@ti.com \
    --cc=devicetree@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=lokeshvutla@ti.com \
    --cc=p.zabel@pengutronix.de \
    --cc=robh+dt@kernel.org \
    --cc=sjakhade@cadence.com \
    --cc=vkoul@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.