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Content-Disposition: inline; filename="950-0371-phy-broadcom-split-out-the-BCM54213PE-from-the-BCM54.patch"
Last-Modified: Fri, 07 Feb 2025 23:14:46 GMT
Expires: Mon, 05 Feb 2035 23:14:46 GMT
ETag: "4fbb4d6594ea4819444cd35f9aff3ccf1b701f71"

From 7b0e9b30aaf78bddfcb589be0686846076f23f62 Mon Sep 17 00:00:00 2001
From: Jonathan Bell <jonathan@raspberrypi.org>
Date: Tue, 14 May 2019 17:00:41 +0100
Subject: [PATCH] phy: broadcom: split out the BCM54213PE from the
 BCM54210E IDs

The last nibble is a revision ID, and the 54213pe is a later rev
than the 54210e. Running the 54210e setup code on a 54213pe results
in a broken RGMII interface.

Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
---
 drivers/net/phy/broadcom.c | 16 +++++++++++++---
 include/linux/brcmphy.h    |  1 +
 2 files changed, 14 insertions(+), 3 deletions(-)

--- a/drivers/net/phy/broadcom.c
+++ b/drivers/net/phy/broadcom.c
@@ -252,7 +252,8 @@ static void bcm54xx_adjust_rxrefclk(stru
 	    BRCM_PHY_MODEL(phydev) != PHY_ID_BCM50610 &&
 	    BRCM_PHY_MODEL(phydev) != PHY_ID_BCM50610M &&
 	    BRCM_PHY_MODEL(phydev) != PHY_ID_BCM54810 &&
-	    BRCM_PHY_MODEL(phydev) != PHY_ID_BCM54811)
+	    BRCM_PHY_MODEL(phydev) != PHY_ID_BCM54811 &&
+	    BRCM_PHY_MODEL(phydev) != PHY_ID_BCM54213PE)
 		return;
 
 	val = bcm_phy_read_shadow(phydev, BCM54XX_SHD_SCR3);
@@ -763,13 +764,21 @@ static struct phy_driver broadcom_driver
 	.config_intr	= bcm_phy_config_intr,
 }, {
 	.phy_id		= PHY_ID_BCM54210E,
-	.phy_id_mask	= 0xfffffff0,
+	.phy_id_mask	= 0xffffffff,
 	.name		= "Broadcom BCM54210E",
 	/* PHY_GBIT_FEATURES */
 	.config_init	= bcm54xx_config_init,
 	.ack_interrupt	= bcm_phy_ack_intr,
 	.config_intr	= bcm_phy_config_intr,
 }, {
+	.phy_id		= PHY_ID_BCM54213PE,
+	.phy_id_mask	= 0xffffffff,
+	.name		= "Broadcom BCM54213PE",
+	/* PHY_GBIT_FEATURES */
+	.config_init	= bcm54xx_config_init,
+	.ack_interrupt	= bcm_phy_ack_intr,
+	.config_intr	= bcm_phy_config_intr,
+}, {
 	.phy_id		= PHY_ID_BCM5461,
 	.phy_id_mask	= 0xfffffff0,
 	.name		= "Broadcom BCM5461",
@@ -924,7 +933,8 @@ module_phy_driver(broadcom_drivers);
 static struct mdio_device_id __maybe_unused broadcom_tbl[] = {
 	{ PHY_ID_BCM5411, 0xfffffff0 },
 	{ PHY_ID_BCM5421, 0xfffffff0 },
-	{ PHY_ID_BCM54210E, 0xfffffff0 },
+	{ PHY_ID_BCM54210E, 0xffffffff },
+	{ PHY_ID_BCM54213PE, 0xffffffff },
 	{ PHY_ID_BCM5461, 0xfffffff0 },
 	{ PHY_ID_BCM54612E, 0xfffffff0 },
 	{ PHY_ID_BCM54616S, 0xfffffff0 },
--- a/include/linux/brcmphy.h
+++ b/include/linux/brcmphy.h
@@ -22,6 +22,7 @@
 #define PHY_ID_BCM5411			0x00206070
 #define PHY_ID_BCM5421			0x002060e0
 #define PHY_ID_BCM54210E		0x600d84a0
+#define PHY_ID_BCM54213PE		0x600d84a2
 #define PHY_ID_BCM5464			0x002060b0
 #define PHY_ID_BCM5461			0x002060c0
 #define PHY_ID_BCM54612E		0x03625e60
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From: Maxime Ripard &lt;maxime@cerno.tech&gt;
Date: Mon, 5 Jul 2021 15:47:43 +0200
Subject: [PATCH] drm/vc4: hdmi: Drop devm interrupt handler for CEC
 interrupts

The CEC interrupt handlers are registered through the
devm_request_threaded_irq function. However, while free_irq is indeed
called properly when the device is unbound or bind fails, it&#39;s called
after unbind or bind is done.

In our particular case, it means that on failure it creates a window
where our interrupt handler can be called, but we&#39;re freeing every
resource (CEC adapter, DRM objects, etc.) it might need.

In order to address this, let&#39;s switch to the non-devm variant to
control better when the handler will be unregistered and allow us to
make it safe.

Fixes: 15b4511a4af6 (&quot;drm/vc4: add HDMI CEC support&quot;)
Signed-off-by: Maxime Ripard &lt;maxime@cerno.tech&gt;
<span class="gd">---</span>
 drivers/gpu/drm/vc4/vc4_hdmi.c | 49 +++++++++++++++++++++++-----------
 1 file changed, 33 insertions(+), 16 deletions(-)

<span class="gd">--- a/drivers/gpu/drm/vc4/vc4_hdmi.c</span>
<span class="gi">+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c</span>
<span class="gu">@@ -1903,38 +1903,46 @@ static int vc4_hdmi_cec_init(struct vc4_</span>
 	vc4_hdmi_cec_update_clk_div(vc4_hdmi);
 
 	if (vc4_hdmi-&gt;variant-&gt;external_irq_controller) {
<span class="gd">-		ret = devm_request_threaded_irq(&amp;pdev-&gt;dev,</span>
<span class="gd">-						platform_get_irq_byname(pdev, &quot;cec-rx&quot;),</span>
<span class="gd">-						vc4_cec_irq_handler_rx_bare,</span>
<span class="gd">-						vc4_cec_irq_handler_rx_thread, 0,</span>
<span class="gd">-						&quot;vc4 hdmi cec rx&quot;, vc4_hdmi);</span>
<span class="gi">+		ret = request_threaded_irq(platform_get_irq_byname(pdev, &quot;cec-rx&quot;),</span>
<span class="gi">+					   vc4_cec_irq_handler_rx_bare,</span>
<span class="gi">+					   vc4_cec_irq_handler_rx_thread, 0,</span>
<span class="gi">+					   &quot;vc4 hdmi cec rx&quot;, vc4_hdmi);</span>
 		if (ret)
 			goto err_delete_cec_adap;
 
<span class="gd">-		ret = devm_request_threaded_irq(&amp;pdev-&gt;dev,</span>
<span class="gd">-						platform_get_irq_byname(pdev, &quot;cec-tx&quot;),</span>
<span class="gd">-						vc4_cec_irq_handler_tx_bare,</span>
<span class="gd">-						vc4_cec_irq_handler_tx_thread, 0,</span>
<span class="gd">-						&quot;vc4 hdmi cec tx&quot;, vc4_hdmi);</span>
<span class="gi">+		ret = request_threaded_irq(platform_get_irq_byname(pdev, &quot;cec-tx&quot;),</span>
<span class="gi">+					   vc4_cec_irq_handler_tx_bare,</span>
<span class="gi">+					   vc4_cec_irq_handler_tx_thread, 0,</span>
<span class="gi">+					   &quot;vc4 hdmi cec tx&quot;, vc4_hdmi);</span>
 		if (ret)
<span class="gd">-			goto err_delete_cec_adap;</span>
<span class="gi">+			goto err_remove_cec_rx_handler;</span>
 	} else {
 		HDMI_WRITE(HDMI_CEC_CPU_MASK_SET, 0xffffffff);
 
<span class="gd">-		ret = devm_request_threaded_irq(&amp;pdev-&gt;dev, platform_get_irq(pdev, 0),</span>
<span class="gd">-						vc4_cec_irq_handler,</span>
<span class="gd">-						vc4_cec_irq_handler_thread, 0,</span>
<span class="gd">-						&quot;vc4 hdmi cec&quot;, vc4_hdmi);</span>
<span class="gi">+		ret = request_threaded_irq(platform_get_irq(pdev, 0),</span>
<span class="gi">+					   vc4_cec_irq_handler,</span>
<span class="gi">+					   vc4_cec_irq_handler_thread, 0,</span>
<span class="gi">+					   &quot;vc4 hdmi cec&quot;, vc4_hdmi);</span>
 		if (ret)
 			goto err_delete_cec_adap;
 	}
 
 	ret = cec_register_adapter(vc4_hdmi-&gt;cec_adap, &amp;pdev-&gt;dev);
 	if (ret &lt; 0)
<span class="gd">-		goto err_delete_cec_adap;</span>
<span class="gi">+		goto err_remove_handlers;</span>
 
 	return 0;
 
<span class="gi">+err_remove_handlers:</span>
<span class="gi">+	if (vc4_hdmi-&gt;variant-&gt;external_irq_controller)</span>
<span class="gi">+		free_irq(platform_get_irq_byname(pdev, &quot;cec-tx&quot;), vc4_hdmi);</span>
<span class="gi">+	else</span>
<span class="gi">+		free_irq(platform_get_irq(pdev, 0), vc4_hdmi);</span>
<span class="gi">+</span>
<span class="gi">+err_remove_cec_rx_handler:</span>
<span class="gi">+	if (vc4_hdmi-&gt;variant-&gt;external_irq_controller)</span>
<span class="gi">+		free_irq(platform_get_irq_byname(pdev, &quot;cec-rx&quot;), vc4_hdmi);</span>
<span class="gi">+</span>
 err_delete_cec_adap:
 	cec_delete_adapter(vc4_hdmi-&gt;cec_adap);
 
<span class="gu">@@ -1943,6 +1951,15 @@ err_delete_cec_adap:</span>
 
 static void vc4_hdmi_cec_exit(struct vc4_hdmi *vc4_hdmi)
 {
<span class="gi">+	struct platform_device *pdev = vc4_hdmi-&gt;pdev;</span>
<span class="gi">+</span>
<span class="gi">+	if (vc4_hdmi-&gt;variant-&gt;external_irq_controller) {</span>
<span class="gi">+		free_irq(platform_get_irq_byname(pdev, &quot;cec-rx&quot;), vc4_hdmi);</span>
<span class="gi">+		free_irq(platform_get_irq_byname(pdev, &quot;cec-tx&quot;), vc4_hdmi);</span>
<span class="gi">+	} else {</span>
<span class="gi">+		free_irq(platform_get_irq(pdev, 0), vc4_hdmi);</span>
<span class="gi">+	}</span>
<span class="gi">+</span>
 	cec_unregister_adapter(vc4_hdmi-&gt;cec_adap);
 }
 #else
</pre></div>
</code></pre></td></tr></table>
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