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Diffstat (limited to 'target/linux/omap/patches-3.12/903-wl12xx-use-frequency-instead-of-enumerations-for-pdata-clocks.patch')
-rw-r--r--target/linux/omap/patches-3.12/903-wl12xx-use-frequency-instead-of-enumerations-for-pdata-clocks.patch289
1 files changed, 289 insertions, 0 deletions
diff --git a/target/linux/omap/patches-3.12/903-wl12xx-use-frequency-instead-of-enumerations-for-pdata-clocks.patch b/target/linux/omap/patches-3.12/903-wl12xx-use-frequency-instead-of-enumerations-for-pdata-clocks.patch
new file mode 100644
index 0000000000..4b5149cec7
--- /dev/null
+++ b/target/linux/omap/patches-3.12/903-wl12xx-use-frequency-instead-of-enumerations-for-pdata-clocks.patch
@@ -0,0 +1,289 @@
+Instead of defining an enumeration with the FW specific values for the
+different clock rates, use the actual frequency instead. Also add a
+boolean to specify whether the clock is XTAL or not.
+
+Change all board files to reflect this.
+
+Additionally, this reverts commit 26f45c (ARM: OMAP2+: Legacy support
+for wl12xx when booted with devicetree), since this is not be needed
+anymore, now that DT support for WiLink is implemented.
+
+Cc: Tony Lindgren <tony@atomide.com>
+Cc: Sekhar Nori <nsekhar@ti.com>
+Signed-off-by: Luciano Coelho <coelho@ti.com>
+Reviewed-by: Felipe Balbi <balbi@ti.com>
+
+---
+ arch/arm/mach-davinci/board-da850-evm.c | 3 +-
+ arch/arm/mach-omap2/board-omap3evm.c | 3 +-
+ arch/arm/mach-omap2/board-zoom-peripherals.c | 3 +-
+ arch/arm/mach-omap2/devices.c | 39 -------------------
+ drivers/net/wireless/ti/wl12xx/main.c | 58 +++++++++++++++++++++++++++-
+ drivers/net/wireless/ti/wl12xx/wl12xx.h | 28 ++++++++++++++
+ include/linux/wl12xx.h | 27 ++-----------
+ 7 files changed, 93 insertions(+), 68 deletions(-)
+
+--- a/arch/arm/mach-davinci/board-da850-evm.c
++++ b/arch/arm/mach-davinci/board-da850-evm.c
+@@ -1370,7 +1370,8 @@ static const short da850_wl12xx_pins[] _
+
+ static struct wl12xx_platform_data da850_wl12xx_wlan_data __initdata = {
+ .irq = -1,
+- .board_ref_clock = WL12XX_REFCLOCK_38,
++ .ref_clock_freq = 38400000,
++ .ref_clock_xtal = false,
+ };
+
+ static __init int da850_wl12xx_init(void)
+--- a/arch/arm/mach-omap2/board-omap3evm.c
++++ b/arch/arm/mach-omap2/board-omap3evm.c
+@@ -473,7 +473,8 @@ static struct platform_device omap3evm_w
+ };
+
+ struct wl12xx_platform_data omap3evm_wlan_data __initdata = {
+- .board_ref_clock = WL12XX_REFCLOCK_38, /* 38.4 MHz */
++ .ref_clock_freq = 38400000,
++ .ref_clock_xtal = false,
+ };
+ #endif
+
+--- a/arch/arm/mach-omap2/board-zoom-peripherals.c
++++ b/arch/arm/mach-omap2/board-zoom-peripherals.c
+@@ -244,7 +244,8 @@ static struct platform_device *zoom_devi
+ };
+
+ static struct wl12xx_platform_data omap_zoom_wlan_data __initdata = {
+- .board_ref_clock = WL12XX_REFCLOCK_26, /* 26 MHz */
++ .ref_clock_freq = 26000000,
++ .ref_clock_xtal = false,
+ };
+
+ static struct omap2_hsmmc_info mmc[] = {
+--- a/arch/arm/mach-omap2/devices.c
++++ b/arch/arm/mach-omap2/devices.c
+@@ -8,7 +8,6 @@
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+-#include <linux/gpio.h>
+ #include <linux/kernel.h>
+ #include <linux/init.h>
+ #include <linux/platform_device.h>
+@@ -19,7 +18,6 @@
+ #include <linux/of.h>
+ #include <linux/pinctrl/machine.h>
+ #include <linux/platform_data/omap4-keypad.h>
+-#include <linux/wl12xx.h>
+ #include <linux/platform_data/mailbox-omap.h>
+
+ #include <asm/mach-types.h>
+@@ -475,40 +473,6 @@ static void omap_init_vout(void)
+ static inline void omap_init_vout(void) {}
+ #endif
+
+-#if IS_ENABLED(CONFIG_WL12XX)
+-
+-static struct wl12xx_platform_data wl12xx __initdata;
+-
+-void __init omap_init_wl12xx_of(void)
+-{
+- int ret;
+-
+- if (!of_have_populated_dt())
+- return;
+-
+- if (of_machine_is_compatible("ti,omap4-sdp")) {
+- wl12xx.board_ref_clock = WL12XX_REFCLOCK_26;
+- wl12xx.board_tcxo_clock = WL12XX_TCXOCLOCK_26;
+- wl12xx.irq = gpio_to_irq(53);
+- } else if (of_machine_is_compatible("ti,omap4-panda")) {
+- wl12xx.board_ref_clock = WL12XX_REFCLOCK_38;
+- wl12xx.irq = gpio_to_irq(53);
+- } else {
+- return;
+- }
+-
+- ret = wl12xx_set_platform_data(&wl12xx);
+- if (ret) {
+- pr_err("error setting wl12xx data: %d\n", ret);
+- return;
+- }
+-}
+-#else
+-static inline void omap_init_wl12xx_of(void)
+-{
+-}
+-#endif
+-
+ /*-------------------------------------------------------------------------*/
+
+ static int __init omap2_init_devices(void)
+@@ -531,9 +495,6 @@ static int __init omap2_init_devices(voi
+ omap_init_sham();
+ omap_init_aes();
+ omap_init_rng();
+- } else {
+- /* These can be removed when bindings are done */
+- omap_init_wl12xx_of();
+ }
+ omap_init_sti();
+ omap_init_vout();
+--- a/drivers/net/wireless/ti/wl12xx/main.c
++++ b/drivers/net/wireless/ti/wl12xx/main.c
+@@ -1701,6 +1701,43 @@ static struct ieee80211_sta_ht_cap wl12x
+ },
+ };
+
++static const struct wl12xx_clock wl12xx_refclock_table[] = {
++ { 19200000, false, WL12XX_REFCLOCK_19 },
++ { 26000000, false, WL12XX_REFCLOCK_26 },
++ { 26000000, true, WL12XX_REFCLOCK_26_XTAL },
++ { 38400000, false, WL12XX_REFCLOCK_38 },
++ { 38400000, true, WL12XX_REFCLOCK_38_XTAL },
++ { 52000000, false, WL12XX_REFCLOCK_52 },
++ { 0, false, 0 }
++};
++
++static const struct wl12xx_clock wl12xx_tcxoclock_table[] = {
++ { 16368000, true, WL12XX_TCXOCLOCK_16_368 },
++ { 16800000, true, WL12XX_TCXOCLOCK_16_8 },
++ { 19200000, true, WL12XX_TCXOCLOCK_19_2 },
++ { 26000000, true, WL12XX_TCXOCLOCK_26 },
++ { 32736000, true, WL12XX_TCXOCLOCK_32_736 },
++ { 33600000, true, WL12XX_TCXOCLOCK_33_6 },
++ { 38400000, true, WL12XX_TCXOCLOCK_38_4 },
++ { 52000000, true, WL12XX_TCXOCLOCK_52 },
++ { 0, false, 0 }
++};
++
++static int wl12xx_get_clock_idx(const struct wl12xx_clock *table,
++ u32 freq, bool xtal)
++{
++ int i = 0;
++
++ while(table[i].freq != 0) {
++ if ((table[i].freq == freq) &&
++ (table[i].xtal == xtal))
++ return table[i].hw_idx;
++ i++;
++ };
++
++ return -EINVAL;
++}
++
+ static int wl12xx_setup(struct wl1271 *wl)
+ {
+ struct wl12xx_priv *priv = wl->priv;
+@@ -1722,7 +1759,16 @@ static int wl12xx_setup(struct wl1271 *w
+ wl12xx_conf_init(wl);
+
+ if (!fref_param) {
+- priv->ref_clock = pdata->board_ref_clock;
++ priv->ref_clock = wl12xx_get_clock_idx(wl12xx_refclock_table,
++ pdata->ref_clock_freq,
++ pdata->ref_clock_xtal);
++ if (priv->ref_clock < 0) {
++ wl1271_error("Invalid ref_clock frequency (%d Hz, %s)",
++ pdata->ref_clock_freq,
++ pdata->ref_clock_xtal ? "XTAL" : "not XTAL");
++
++ return priv->ref_clock;
++ }
+ } else {
+ if (!strcmp(fref_param, "19.2"))
+ priv->ref_clock = WL12XX_REFCLOCK_19;
+@@ -1741,7 +1787,15 @@ static int wl12xx_setup(struct wl1271 *w
+ }
+
+ if (!tcxo_param) {
+- priv->tcxo_clock = pdata->board_tcxo_clock;
++ priv->tcxo_clock = wl12xx_get_clock_idx(wl12xx_tcxoclock_table,
++ pdata->tcxo_clock_freq,
++ true);
++ if (priv->tcxo_clock < 0) {
++ wl1271_error("Invalid tcxo_clock frequency (%d Hz)",
++ pdata->tcxo_clock_freq);
++
++ return priv->tcxo_clock;
++ }
+ } else {
+ if (!strcmp(tcxo_param, "19.2"))
+ priv->tcxo_clock = WL12XX_TCXOCLOCK_19_2;
+--- a/drivers/net/wireless/ti/wl12xx/wl12xx.h
++++ b/drivers/net/wireless/ti/wl12xx/wl12xx.h
+@@ -79,4 +79,32 @@ struct wl12xx_priv {
+ struct wl127x_rx_mem_pool_addr *rx_mem_addr;
+ };
+
++/* Reference clock values */
++enum {
++ WL12XX_REFCLOCK_19 = 0, /* 19.2 MHz */
++ WL12XX_REFCLOCK_26 = 1, /* 26 MHz */
++ WL12XX_REFCLOCK_38 = 2, /* 38.4 MHz */
++ WL12XX_REFCLOCK_52 = 3, /* 52 MHz */
++ WL12XX_REFCLOCK_38_XTAL = 4, /* 38.4 MHz, XTAL */
++ WL12XX_REFCLOCK_26_XTAL = 5, /* 26 MHz, XTAL */
++};
++
++/* TCXO clock values */
++enum {
++ WL12XX_TCXOCLOCK_19_2 = 0, /* 19.2MHz */
++ WL12XX_TCXOCLOCK_26 = 1, /* 26 MHz */
++ WL12XX_TCXOCLOCK_38_4 = 2, /* 38.4MHz */
++ WL12XX_TCXOCLOCK_52 = 3, /* 52 MHz */
++ WL12XX_TCXOCLOCK_16_368 = 4, /* 16.368 MHz */
++ WL12XX_TCXOCLOCK_32_736 = 5, /* 32.736 MHz */
++ WL12XX_TCXOCLOCK_16_8 = 6, /* 16.8 MHz */
++ WL12XX_TCXOCLOCK_33_6 = 7, /* 33.6 MHz */
++};
++
++struct wl12xx_clock {
++ u32 freq;
++ bool xtal;
++ u8 hw_idx;
++};
++
+ #endif /* __WL12XX_PRIV_H__ */
+--- a/include/linux/wl12xx.h
++++ b/include/linux/wl12xx.h
+@@ -26,28 +26,6 @@
+
+ #include <linux/err.h>
+
+-/* Reference clock values */
+-enum {
+- WL12XX_REFCLOCK_19 = 0, /* 19.2 MHz */
+- WL12XX_REFCLOCK_26 = 1, /* 26 MHz */
+- WL12XX_REFCLOCK_38 = 2, /* 38.4 MHz */
+- WL12XX_REFCLOCK_52 = 3, /* 52 MHz */
+- WL12XX_REFCLOCK_38_XTAL = 4, /* 38.4 MHz, XTAL */
+- WL12XX_REFCLOCK_26_XTAL = 5, /* 26 MHz, XTAL */
+-};
+-
+-/* TCXO clock values */
+-enum {
+- WL12XX_TCXOCLOCK_19_2 = 0, /* 19.2MHz */
+- WL12XX_TCXOCLOCK_26 = 1, /* 26 MHz */
+- WL12XX_TCXOCLOCK_38_4 = 2, /* 38.4MHz */
+- WL12XX_TCXOCLOCK_52 = 3, /* 52 MHz */
+- WL12XX_TCXOCLOCK_16_368 = 4, /* 16.368 MHz */
+- WL12XX_TCXOCLOCK_32_736 = 5, /* 32.736 MHz */
+- WL12XX_TCXOCLOCK_16_8 = 6, /* 16.8 MHz */
+- WL12XX_TCXOCLOCK_33_6 = 7, /* 33.6 MHz */
+-};
+-
+ struct wl1251_platform_data {
+ void (*set_power)(bool enable);
+ /* SDIO only: IRQ number if WLAN_IRQ line is used, 0 for SDIO IRQs */
+@@ -57,8 +35,9 @@ struct wl1251_platform_data {
+
+ struct wl12xx_platform_data {
+ int irq;
+- int board_ref_clock;
+- int board_tcxo_clock;
++ int ref_clock_freq; /* in Hertz */
++ bool ref_clock_xtal; /* specify whether the clock is XTAL or not */
++ int tcxo_clock_freq; /* in Hertz, tcxo is always XTAL */
+ };
+
+ #ifdef CONFIG_WILINK_PLATFORM_DATA
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-08 12:33:59 +0000