linux-kernel - [PATCH 1/1] clk: aspeed: modify some default clks are critical

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Date:   Mon, 28 Sep 2020 15:01:08 +0800
From:   Ryan Chen <ryan_chen@...eedtech.com>
To:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, Joel Stanley <joel@....id.au>,
        Andrew Jeffery <andrew@...id.au>, <linux-clk@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-aspeed@...ts.ozlabs.org>, <linux-kernel@...r.kernel.org>,
        <bmc-sw@...eedtech.com>
CC:     Ryan Chen <ryan_chen@...eedtech.com>
Subject: [PATCH 1/1] clk: aspeed: modify some default clks are critical

In ASPEED SoC LCLK is LPC clock for all SuperIO device, UART1/UART2 are
default for Host SuperIO UART device, eSPI clk for Host eSPI bus access
eSPI slave channel, those clks can't be disable should keep default,
otherwise will affect Host side access SuperIO and SPI slave device.

Signed-off-by: Ryan Chen <ryan_chen@...eedtech.com>
---
 drivers/clk/clk-aspeed.c  | 8 ++++----
 drivers/clk/clk-ast2600.c | 8 ++++----
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/clk/clk-aspeed.c b/drivers/clk/clk-aspeed.c
index 411ff5fb2c07..d348c4fd3f9f 100644
--- a/drivers/clk/clk-aspeed.c
+++ b/drivers/clk/clk-aspeed.c
@@ -54,15 +54,15 @@ static const struct aspeed_gate_data aspeed_gates[] = {
 	[ASPEED_CLK_GATE_DCLK] =	{  5, -1, "dclk-gate",		NULL,	CLK_IS_CRITICAL }, /* DAC */
 	[ASPEED_CLK_GATE_REFCLK] =	{  6, -1, "refclk-gate",	"clkin", CLK_IS_CRITICAL },
 	[ASPEED_CLK_GATE_USBPORT2CLK] =	{  7,  3, "usb-port2-gate",	NULL,	0 }, /* USB2.0 Host port 2 */
-	[ASPEED_CLK_GATE_LCLK] =	{  8,  5, "lclk-gate",		NULL,	0 }, /* LPC */
+	[ASPEED_CLK_GATE_LCLK] =	{  8,  5, "lclk-gate",		NULL,	CLK_IS_CRITICAL }, /* LPC */
 	[ASPEED_CLK_GATE_USBUHCICLK] =	{  9, 15, "usb-uhci-gate",	NULL,	0 }, /* USB1.1 (requires port 2 enabled) */
 	[ASPEED_CLK_GATE_D1CLK] =	{ 10, 13, "d1clk-gate",		NULL,	0 }, /* GFX CRT */
 	[ASPEED_CLK_GATE_YCLK] =	{ 13,  4, "yclk-gate",		NULL,	0 }, /* HAC */
 	[ASPEED_CLK_GATE_USBPORT1CLK] = { 14, 14, "usb-port1-gate",	NULL,	0 }, /* USB2 hub/USB2 host port 1/USB1.1 dev */
-	[ASPEED_CLK_GATE_UART1CLK] =	{ 15, -1, "uart1clk-gate",	"uart",	0 }, /* UART1 */
-	[ASPEED_CLK_GATE_UART2CLK] =	{ 16, -1, "uart2clk-gate",	"uart",	0 }, /* UART2 */
+	[ASPEED_CLK_GATE_UART1CLK] =	{ 15, -1, "uart1clk-gate",	"uart",	CLK_IS_CRITICAL }, /* UART1 */
+	[ASPEED_CLK_GATE_UART2CLK] =	{ 16, -1, "uart2clk-gate",	"uart",	CLK_IS_CRITICAL }, /* UART2 */
 	[ASPEED_CLK_GATE_UART5CLK] =	{ 17, -1, "uart5clk-gate",	"uart",	0 }, /* UART5 */
-	[ASPEED_CLK_GATE_ESPICLK] =	{ 19, -1, "espiclk-gate",	NULL,	0 }, /* eSPI */
+	[ASPEED_CLK_GATE_ESPICLK] =	{ 19, -1, "espiclk-gate",	NULL,	CLK_IS_CRITICAL }, /* eSPI */
 	[ASPEED_CLK_GATE_MAC1CLK] =	{ 20, 11, "mac1clk-gate",	"mac",	0 }, /* MAC1 */
 	[ASPEED_CLK_GATE_MAC2CLK] =	{ 21, 12, "mac2clk-gate",	"mac",	0 }, /* MAC2 */
 	[ASPEED_CLK_GATE_RSACLK] =	{ 24, -1, "rsaclk-gate",	NULL,	0 }, /* RSA */
diff --git a/drivers/clk/clk-ast2600.c b/drivers/clk/clk-ast2600.c
index bbacaccad554..6802a2d5bbe2 100644
--- a/drivers/clk/clk-ast2600.c
+++ b/drivers/clk/clk-ast2600.c
@@ -86,8 +86,8 @@ static const struct aspeed_gate_data aspeed_g6_gates[] = {
 	/* Reserved 26 */
 	[ASPEED_CLK_GATE_EMMCCLK]	= { 27, 16, "emmcclk-gate",	NULL,	 0 },	/* For card clk */
 	/* Reserved 28/29/30 */
-	[ASPEED_CLK_GATE_LCLK]		= { 32, 32, "lclk-gate",	NULL,	 0 }, /* LPC */
-	[ASPEED_CLK_GATE_ESPICLK]	= { 33, -1, "espiclk-gate",	NULL,	 0 }, /* eSPI */
+	[ASPEED_CLK_GATE_LCLK]		= { 32, 32, "lclk-gate",	NULL,	 CLK_IS_CRITICAL }, /* LPC */
+	[ASPEED_CLK_GATE_ESPICLK]	= { 33, -1, "espiclk-gate",	NULL,	 CLK_IS_CRITICAL }, /* eSPI */
 	[ASPEED_CLK_GATE_REF1CLK]	= { 34, -1, "ref1clk-gate",	"clkin", CLK_IS_CRITICAL },
 	/* Reserved 35 */
 	[ASPEED_CLK_GATE_SDCLK]		= { 36, 56, "sdclk-gate",	NULL,	 0 },	/* SDIO/SD */
@@ -102,8 +102,8 @@ static const struct aspeed_gate_data aspeed_g6_gates[] = {
 	[ASPEED_CLK_GATE_I3C5CLK]	= { 45,  45, "i3c5clk-gate",	NULL,	 0 },	/* I3C5 */
 	[ASPEED_CLK_GATE_I3C6CLK]	= { 46,  46, "i3c6clk-gate",	NULL,	 0 },	/* I3C6 */
 	[ASPEED_CLK_GATE_I3C7CLK]	= { 47,  47, "i3c7clk-gate",	NULL,	 0 },	/* I3C7 */
-	[ASPEED_CLK_GATE_UART1CLK]	= { 48,  -1, "uart1clk-gate",	"uart",	 0 },	/* UART1 */
-	[ASPEED_CLK_GATE_UART2CLK]	= { 49,  -1, "uart2clk-gate",	"uart",	 0 },	/* UART2 */
+	[ASPEED_CLK_GATE_UART1CLK]	= { 48,  -1, "uart1clk-gate",	"uart",	 CLK_IS_CRITICAL },	/* UART1 */
+	[ASPEED_CLK_GATE_UART2CLK]	= { 49,  -1, "uart2clk-gate",	"uart",	 CLK_IS_CRITICAL },	/* UART2 */
 	[ASPEED_CLK_GATE_UART3CLK]	= { 50,  -1, "uart3clk-gate",	"uart",  0 },	/* UART3 */
 	[ASPEED_CLK_GATE_UART4CLK]	= { 51,  -1, "uart4clk-gate",	"uart",	 0 },	/* UART4 */
 	[ASPEED_CLK_GATE_MAC3CLK]	= { 52,  52, "mac3clk-gate",	"mac34", 0 },	/* MAC3 */
-- 
2.17.1