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From: David Lechner <david@lechnology.com>
To: linux-clk@vger.kernel.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Cc: Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@codeaurora.org>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>, Sekhar Nori <nsekhar@ti.com>,
	Kevin Hilman <khilman@kernel.org>,
	Bartosz Golaszewski <bgolaszewski@baylibre.com>,
	Adam Ford <aford173@gmail.com>,
	linux-kernel@vger.kernel.org,
	David Lechner <david@lechnology.com>
Subject: [PATCH v9 26/27] ARM: davinci: da8xx-dt: switch to device tree clocks
Date: Thu, 26 Apr 2018 19:17:44 -0500	[thread overview]
Message-ID: <20180427001745.4116-27-david@lechnology.com> (raw)
In-Reply-To: <20180427001745.4116-1-david@lechnology.com>

This removes all of the clock init code from da8xx-dt.c. This includes
all of the OF_DEV_AUXDATA that was just used for looking up clocks.

Signed-off-by: David Lechner <david@lechnology.com>
---

v9 changes:
- changes to arch/arm/mach-davinci/time.c accidentally got squashed into this
  commit. will drop this later.

v8 changes:
- none

v7 changes:
- rebased
- drop of_platform_default_populate(NULL, NULL, NULL)
- add change in pm_domain.c

v6 changes:
- removed misleading statement from commit message


 arch/arm/mach-davinci/da8xx-dt.c  | 58 -------------------------------
 arch/arm/mach-davinci/pm_domain.c |  5 +++
 arch/arm/mach-davinci/time.c      |  9 ++---
 3 files changed, 10 insertions(+), 62 deletions(-)

diff --git a/arch/arm/mach-davinci/da8xx-dt.c b/arch/arm/mach-davinci/da8xx-dt.c
index 088bc5c0318b..23ac4108f812 100644
--- a/arch/arm/mach-davinci/da8xx-dt.c
+++ b/arch/arm/mach-davinci/da8xx-dt.c
@@ -19,67 +19,10 @@
 #include "cp_intc.h"
 #include <mach/da8xx.h>
 
-static struct of_dev_auxdata da850_aemif_auxdata_lookup[] = {
-	OF_DEV_AUXDATA("ti,davinci-nand", 0x62000000, "davinci-nand.0", NULL),
-	{}
-};
-
-static struct aemif_platform_data aemif_data = {
-	.dev_lookup = da850_aemif_auxdata_lookup,
-};
-
-static struct of_dev_auxdata da850_auxdata_lookup[] __initdata = {
-	OF_DEV_AUXDATA("ti,davinci-i2c", 0x01c22000, "i2c_davinci.1", NULL),
-	OF_DEV_AUXDATA("ti,davinci-i2c", 0x01e28000, "i2c_davinci.2", NULL),
-	OF_DEV_AUXDATA("ti,davinci-wdt", 0x01c21000, "davinci-wdt", NULL),
-	OF_DEV_AUXDATA("ti,da830-mmc", 0x01c40000, "da830-mmc.0", NULL),
-	OF_DEV_AUXDATA("ti,da850-ehrpwm", 0x01f00000, "ehrpwm.0", NULL),
-	OF_DEV_AUXDATA("ti,da850-ehrpwm", 0x01f02000, "ehrpwm.1", NULL),
-	OF_DEV_AUXDATA("ti,da850-ecap", 0x01f06000, "ecap.0", NULL),
-	OF_DEV_AUXDATA("ti,da850-ecap", 0x01f07000, "ecap.1", NULL),
-	OF_DEV_AUXDATA("ti,da850-ecap", 0x01f08000, "ecap.2", NULL),
-	OF_DEV_AUXDATA("ti,da830-spi", 0x01c41000, "spi_davinci.0", NULL),
-	OF_DEV_AUXDATA("ti,da830-spi", 0x01f0e000, "spi_davinci.1", NULL),
-	OF_DEV_AUXDATA("ns16550a", 0x01c42000, "serial8250.0", NULL),
-	OF_DEV_AUXDATA("ns16550a", 0x01d0c000, "serial8250.1", NULL),
-	OF_DEV_AUXDATA("ns16550a", 0x01d0d000, "serial8250.2", NULL),
-	OF_DEV_AUXDATA("ti,davinci_mdio", 0x01e24000, "davinci_mdio.0", NULL),
-	OF_DEV_AUXDATA("ti,davinci-dm6467-emac", 0x01e20000, "davinci_emac.1",
-		       NULL),
-	OF_DEV_AUXDATA("ti,da830-mcasp-audio", 0x01d00000, "davinci-mcasp.0", NULL),
-	OF_DEV_AUXDATA("ti,da850-aemif", 0x68000000, "ti-aemif", &aemif_data),
-	OF_DEV_AUXDATA("ti,da850-tilcdc", 0x01e13000, "da8xx_lcdc.0", NULL),
-	OF_DEV_AUXDATA("ti,da830-ohci", 0x01e25000, "ohci-da8xx", NULL),
-	OF_DEV_AUXDATA("ti,da830-musb", 0x01e00000, "musb-da8xx", NULL),
-	OF_DEV_AUXDATA("ti,da830-usb-phy", 0x01c1417c, "da8xx-usb-phy", NULL),
-	OF_DEV_AUXDATA("ti,da850-ahci", 0x01e18000, "ahci_da850", NULL),
-	OF_DEV_AUXDATA("ti,da850-vpif", 0x01e17000, "vpif", NULL),
-	OF_DEV_AUXDATA("ti,da850-dsp", 0x11800000, "davinci-rproc.0", NULL),
-	{}
-};
-
 #ifdef CONFIG_ARCH_DAVINCI_DA850
 
 static void __init da850_init_machine(void)
 {
-	/* All existing boards use 100MHz SATA refclkpn */
-	static const unsigned long sata_refclkpn = 100 * 1000 * 1000;
-
-	int ret;
-
-	da850_register_clocks();
-
-	ret = da8xx_register_usb_phy_clocks();
-	if (ret)
-		pr_warn("%s: USB PHY CLK registration failed: %d\n",
-			__func__, ret);
-
-	ret = da850_register_sata_refclk(sata_refclkpn);
-	if (ret)
-		pr_warn("%s: registering SATA REFCLK failed: %d",
-			__func__, ret);
-
-	of_platform_default_populate(NULL, da850_auxdata_lookup, NULL);
 	davinci_pm_init();
 	pdata_quirks_init();
 }
@@ -94,7 +37,6 @@ static const char *const da850_boards_compat[] __initconst = {
 
 DT_MACHINE_START(DA850_DT, "Generic DA850/OMAP-L138/AM18x")
 	.map_io		= da850_init,
-	.init_time	= da850_init_time,
 	.init_machine	= da850_init_machine,
 	.dt_compat	= da850_boards_compat,
 	.init_late	= davinci_init_late,
diff --git a/arch/arm/mach-davinci/pm_domain.c b/arch/arm/mach-davinci/pm_domain.c
index 78eac2c0c146..e251fd593bfd 100644
--- a/arch/arm/mach-davinci/pm_domain.c
+++ b/arch/arm/mach-davinci/pm_domain.c
@@ -13,6 +13,7 @@
 #include <linux/pm_runtime.h>
 #include <linux/pm_clock.h>
 #include <linux/platform_device.h>
+#include <linux/of.h>
 
 static struct dev_pm_domain davinci_pm_domain = {
 	.ops = {
@@ -28,6 +29,10 @@ static struct pm_clk_notifier_block platform_bus_notifier = {
 
 static int __init davinci_pm_runtime_init(void)
 {
+	if (of_have_populated_dt())
+		return 0;
+
+	/* Use pm_clk as fallback if we're not using genpd. */
 	pm_clk_add_notifier(&platform_bus_type, &platform_bus_notifier);
 
 	return 0;
diff --git a/arch/arm/mach-davinci/time.c b/arch/arm/mach-davinci/time.c
index 7a8c6fada644..77ad95913dfa 100644
--- a/arch/arm/mach-davinci/time.c
+++ b/arch/arm/mach-davinci/time.c
@@ -409,11 +409,12 @@ static int __init of_davinci_timer_init(struct device_node *np)
 
 		/*
 		 * Fall back to using ref_clk if the actual clock is not
-		 * available. This currently always happens because platform
-		 * clocks (i.e PLLs and PSCs) are registered as platform
-		 * devices and therefore are not available at this point in
-		 * the boot process.
+		 * available. There will be problems later if the real clock
+		 * source is disabled.
 		 */
+
+		pr_warn("%s: falling back to ref_clk\n", __func__);
+
 		clkspec.np = of_find_node_by_name(NULL, "ref_clk");
 		if (IS_ERR(clkspec.np)) {
 			pr_err("%s: No clock available for timer!\n", __func__);
-- 
2.17.0

  parent reply	other threads:[~2018-04-27  0:19 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-27  0:17 [PATCH v9 00/27] ARM: davinci: convert to common clock framework​ David Lechner
2018-04-27  0:17 ` [PATCH v9 01/27] clk: davinci: pll: allow dev == NULL David Lechner
2018-05-01 13:27   ` Sekhar Nori
2018-05-02  1:44     ` David Lechner
2018-04-27  0:17 ` [PATCH v9 02/27] clk: davinci: da850-pll: change PLL0 to CLK_OF_DECLARE David Lechner
2018-05-01 13:46   ` Sekhar Nori
2018-05-02  1:46     ` David Lechner
2018-04-27  0:17 ` [PATCH v9 03/27] clk: davinci: psc: allow for dev == NULL David Lechner
2018-05-01 14:02   ` Sekhar Nori
2018-05-02  1:49     ` David Lechner
2018-05-02 15:08       ` Sekhar Nori
2018-04-27  0:17 ` [PATCH v9 04/27] ARM: davinci: pass clock as parameter to davinci_timer_init() David Lechner
2018-05-01 14:09   ` Sekhar Nori
2018-04-27  0:17 ` [PATCH v9 05/27] ARM: davinci: da830: add new clock init using common clock framework David Lechner
2018-05-01 14:13   ` Sekhar Nori
2018-04-27  0:17 ` [PATCH v9 06/27] ARM: davinci: da850: " David Lechner
2018-05-01 14:17   ` Sekhar Nori
2018-04-27  0:17 ` [PATCH v9 07/27] ARM: davinci: dm355: " David Lechner
2018-05-03 15:34   ` Sekhar Nori
2018-05-03 15:44     ` David Lechner
2018-05-04 10:01       ` Sekhar Nori
2018-05-04 14:26         ` David Lechner
2018-04-27  0:17 ` [PATCH v9 08/27] ARM: davinci: dm365: " David Lechner
2018-04-27  0:17 ` [PATCH v9 09/27] ARM: davinci: dm644x: " David Lechner
2018-05-03 13:18   ` Sekhar Nori
2018-04-27  0:17 ` [PATCH v9 10/27] ARM: davinci: dm646x: " David Lechner
2018-04-27  0:17 ` [PATCH v9 11/27] ARM: davinci: da8xx: add new USB PHY " David Lechner
2018-04-27  0:17 ` [PATCH v9 12/27] ARM: davinci: da8xx: add new sata_refclk " David Lechner
2018-04-27  0:17 ` [PATCH v9 13/27] ARM: davinci: remove CONFIG_DAVINCI_RESET_CLOCKS David Lechner
2018-04-27  0:17 ` [PATCH v9 14/27] ARM: davinci_all_defconfig: " David Lechner
2018-04-27  0:17 ` [PATCH v9 15/27] ARM: davinci: switch to common clock framework David Lechner
2018-04-27  0:17 ` [PATCH v9 16/27] ARM: davinci: da830: Remove legacy clock init David Lechner
2018-04-27  0:17 ` [PATCH v9 17/27] ARM: davinci: da850: " David Lechner
2018-04-27  0:17 ` [PATCH v9 18/27] ARM: davinci: dm355: " David Lechner
2018-04-27  0:17 ` [PATCH v9 19/27] ARM: davinci: dm365: " David Lechner
2018-04-27  0:17 ` [PATCH v9 20/27] ARM: davinci: dm644x: " David Lechner
2018-04-27  0:17 ` [PATCH v9 21/27] ARM: davinci: dm646x: " David Lechner
2018-04-27  0:17 ` [PATCH v9 22/27] ARM: davinci: da8xx: Remove legacy USB and SATA " David Lechner
2018-04-27  0:17 ` [PATCH v9 23/27] ARM: davinci: remove legacy clocks David Lechner
2018-04-27  0:17 ` [PATCH v9 24/27] dt-bindings: timer: new bindings for TI DaVinci timer David Lechner
2018-04-27 14:05   ` Rob Herring
2018-05-02  1:52     ` David Lechner
2018-05-02  5:03       ` Sekhar Nori
2018-04-27  0:17 ` [PATCH v9 25/27] ARM: davinci: add device tree support to timer David Lechner
2018-04-27  0:17 ` David Lechner [this message]
2018-04-27  9:53   ` [PATCH v9 26/27] ARM: davinci: da8xx-dt: switch to device tree clocks Bartosz Golaszewski
2018-04-27  0:17 ` [PATCH v9 27/27] ARM: dts: da850: Add clocks David Lechner
2018-04-27 12:04 ` [PATCH v9 00/27] ARM: davinci: convert to common clock framework​ Bartosz Golaszewski
2018-04-30 20:35 ` Bartosz Golaszewski
2018-05-01 14:45 ` Sekhar Nori

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