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authorJonas Gorski <jonas.gorski@gmail.com>2017-09-20 13:14:01 +0200
committerJames Hogan <jhogan@kernel.org>2017-11-07 18:33:17 +0000
commitc5af3c2dd0760737f4fee9c414a7d647957ca767 (patch)
treeb318bbc2088e0b0cdf7f9a3261cf87b527061bbb /arch/mips/bcm63xx
parentc05afeec17cdba6c5c70de4226c136ceee5568df (diff)
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MIPS: BCM63XX: add clkdev lookup support
Enable clkdev lookup support to allow us providing clocks under different names to devices more easily, so we don't need to care about clock name clashes anymore. Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Russell King <linux@armlinux.org.uk> Cc: linux-mips@linux-mips.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-serial@vger.kernel.org Cc: devicetree@vger.kernel.org Cc: bcm-kernel-feedback-list@broadcom.com Patchwork: https://patchwork.linux-mips.org/patch/17325/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: James Hogan <jhogan@kernel.org>
Diffstat (limited to 'arch/mips/bcm63xx')
-rw-r--r--arch/mips/bcm63xx/clk.c150
1 files changed, 115 insertions, 35 deletions
diff --git a/arch/mips/bcm63xx/clk.c b/arch/mips/bcm63xx/clk.c
index 19577f771c1f..f712c9558d57 100644
--- a/arch/mips/bcm63xx/clk.c
+++ b/arch/mips/bcm63xx/clk.c
@@ -11,6 +11,7 @@
#include <linux/mutex.h>
#include <linux/err.h>
#include <linux/clk.h>
+#include <linux/clkdev.h>
#include <linux/delay.h>
#include <bcm63xx_cpu.h>
#include <bcm63xx_io.h>
@@ -359,44 +360,103 @@ long clk_round_rate(struct clk *clk, unsigned long rate)
}
EXPORT_SYMBOL_GPL(clk_round_rate);
-struct clk *clk_get(struct device *dev, const char *id)
-{
- if (!strcmp(id, "enet0"))
- return &clk_enet0;
- if (!strcmp(id, "enet1"))
- return &clk_enet1;
- if (!strcmp(id, "enetsw"))
- return &clk_enetsw;
- if (!strcmp(id, "ephy"))
- return &clk_ephy;
- if (!strcmp(id, "usbh"))
- return &clk_usbh;
- if (!strcmp(id, "usbd"))
- return &clk_usbd;
- if (!strcmp(id, "spi"))
- return &clk_spi;
- if (!strcmp(id, "hsspi"))
- return &clk_hsspi;
- if (!strcmp(id, "xtm"))
- return &clk_xtm;
- if (!strcmp(id, "periph"))
- return &clk_periph;
- if ((BCMCPU_IS_3368() || BCMCPU_IS_6358()) && !strcmp(id, "pcm"))
- return &clk_pcm;
- if ((BCMCPU_IS_6362() || BCMCPU_IS_6368()) && !strcmp(id, "ipsec"))
- return &clk_ipsec;
- if ((BCMCPU_IS_6328() || BCMCPU_IS_6362()) && !strcmp(id, "pcie"))
- return &clk_pcie;
- return ERR_PTR(-ENOENT);
-}
+static struct clk_lookup bcm3368_clks[] = {
+ /* fixed rate clocks */
+ CLKDEV_INIT(NULL, "periph", &clk_periph),
+ /* gated clocks */
+ CLKDEV_INIT(NULL, "enet0", &clk_enet0),
+ CLKDEV_INIT(NULL, "enet1", &clk_enet1),
+ CLKDEV_INIT(NULL, "ephy", &clk_ephy),
+ CLKDEV_INIT(NULL, "usbh", &clk_usbh),
+ CLKDEV_INIT(NULL, "usbd", &clk_usbd),
+ CLKDEV_INIT(NULL, "spi", &clk_spi),
+ CLKDEV_INIT(NULL, "pcm", &clk_pcm),
+};
-EXPORT_SYMBOL(clk_get);
+static struct clk_lookup bcm6328_clks[] = {
+ /* fixed rate clocks */
+ CLKDEV_INIT(NULL, "periph", &clk_periph),
+ /* gated clocks */
+ CLKDEV_INIT(NULL, "enetsw", &clk_enetsw),
+ CLKDEV_INIT(NULL, "usbh", &clk_usbh),
+ CLKDEV_INIT(NULL, "usbd", &clk_usbd),
+ CLKDEV_INIT(NULL, "hsspi", &clk_hsspi),
+ CLKDEV_INIT(NULL, "pcie", &clk_pcie),
+};
-void clk_put(struct clk *clk)
-{
-}
+static struct clk_lookup bcm6338_clks[] = {
+ /* fixed rate clocks */
+ CLKDEV_INIT(NULL, "periph", &clk_periph),
+ /* gated clocks */
+ CLKDEV_INIT(NULL, "enet0", &clk_enet0),
+ CLKDEV_INIT(NULL, "enet1", &clk_enet1),
+ CLKDEV_INIT(NULL, "ephy", &clk_ephy),
+ CLKDEV_INIT(NULL, "usbh", &clk_usbh),
+ CLKDEV_INIT(NULL, "usbd", &clk_usbd),
+ CLKDEV_INIT(NULL, "spi", &clk_spi),
+};
+
+static struct clk_lookup bcm6345_clks[] = {
+ /* fixed rate clocks */
+ CLKDEV_INIT(NULL, "periph", &clk_periph),
+ /* gated clocks */
+ CLKDEV_INIT(NULL, "enet0", &clk_enet0),
+ CLKDEV_INIT(NULL, "enet1", &clk_enet1),
+ CLKDEV_INIT(NULL, "ephy", &clk_ephy),
+ CLKDEV_INIT(NULL, "usbh", &clk_usbh),
+ CLKDEV_INIT(NULL, "usbd", &clk_usbd),
+ CLKDEV_INIT(NULL, "spi", &clk_spi),
+};
+
+static struct clk_lookup bcm6348_clks[] = {
+ /* fixed rate clocks */
+ CLKDEV_INIT(NULL, "periph", &clk_periph),
+ /* gated clocks */
+ CLKDEV_INIT(NULL, "enet0", &clk_enet0),
+ CLKDEV_INIT(NULL, "enet1", &clk_enet1),
+ CLKDEV_INIT(NULL, "ephy", &clk_ephy),
+ CLKDEV_INIT(NULL, "usbh", &clk_usbh),
+ CLKDEV_INIT(NULL, "usbd", &clk_usbd),
+ CLKDEV_INIT(NULL, "spi", &clk_spi),
+};
-EXPORT_SYMBOL(clk_put);
+static struct clk_lookup bcm6358_clks[] = {
+ /* fixed rate clocks */
+ CLKDEV_INIT(NULL, "periph", &clk_periph),
+ /* gated clocks */
+ CLKDEV_INIT(NULL, "enet0", &clk_enet0),
+ CLKDEV_INIT(NULL, "enet1", &clk_enet1),
+ CLKDEV_INIT(NULL, "ephy", &clk_ephy),
+ CLKDEV_INIT(NULL, "usbh", &clk_usbh),
+ CLKDEV_INIT(NULL, "usbd", &clk_usbd),
+ CLKDEV_INIT(NULL, "spi", &clk_spi),
+ CLKDEV_INIT(NULL, "pcm", &clk_pcm),
+};
+
+static struct clk_lookup bcm6362_clks[] = {
+ /* fixed rate clocks */
+ CLKDEV_INIT(NULL, "periph", &clk_periph),
+ /* gated clocks */
+ CLKDEV_INIT(NULL, "enetsw", &clk_enetsw),
+ CLKDEV_INIT(NULL, "usbh", &clk_usbh),
+ CLKDEV_INIT(NULL, "usbd", &clk_usbd),
+ CLKDEV_INIT(NULL, "spi", &clk_spi),
+ CLKDEV_INIT(NULL, "hsspi", &clk_hsspi),
+ CLKDEV_INIT(NULL, "pcie", &clk_pcie),
+ CLKDEV_INIT(NULL, "ipsec", &clk_ipsec),
+};
+
+static struct clk_lookup bcm6368_clks[] = {
+ /* fixed rate clocks */
+ CLKDEV_INIT(NULL, "periph", &clk_periph),
+ /* gated clocks */
+ CLKDEV_INIT(NULL, "enetsw", &clk_enetsw),
+ CLKDEV_INIT(NULL, "usbh", &clk_usbh),
+ CLKDEV_INIT(NULL, "usbd", &clk_usbd),
+ CLKDEV_INIT(NULL, "spi", &clk_spi),
+ CLKDEV_INIT(NULL, "xtm", &clk_xtm),
+ CLKDEV_INIT(NULL, "ipsec", &clk_ipsec),
+};
#define HSSPI_PLL_HZ_6328 133333333
#define HSSPI_PLL_HZ_6362 400000000
@@ -404,11 +464,31 @@ EXPORT_SYMBOL(clk_put);
static int __init bcm63xx_clk_init(void)
{
switch (bcm63xx_get_cpu_id()) {
+ case BCM3368_CPU_ID:
+ clkdev_add_table(bcm3368_clks, ARRAY_SIZE(bcm3368_clks));
+ break;
case BCM6328_CPU_ID:
clk_hsspi.rate = HSSPI_PLL_HZ_6328;
+ clkdev_add_table(bcm6328_clks, ARRAY_SIZE(bcm6328_clks));
+ break;
+ case BCM6338_CPU_ID:
+ clkdev_add_table(bcm6338_clks, ARRAY_SIZE(bcm6338_clks));
+ break;
+ case BCM6345_CPU_ID:
+ clkdev_add_table(bcm6345_clks, ARRAY_SIZE(bcm6345_clks));
+ break;
+ case BCM6348_CPU_ID:
+ clkdev_add_table(bcm6348_clks, ARRAY_SIZE(bcm6348_clks));
+ break;
+ case BCM6358_CPU_ID:
+ clkdev_add_table(bcm6358_clks, ARRAY_SIZE(bcm6358_clks));
break;
case BCM6362_CPU_ID:
clk_hsspi.rate = HSSPI_PLL_HZ_6362;
+ clkdev_add_table(bcm6362_clks, ARRAY_SIZE(bcm6362_clks));
+ break;
+ case BCM6368_CPU_ID:
+ clkdev_add_table(bcm6368_clks, ARRAY_SIZE(bcm6368_clks));
break;
}