From 7201472ed376882927ecc0d917acec6cc1610c80 Mon Sep 17 00:00:00 2001 From: Hamad Kadmany Date: Sun, 1 Feb 2015 10:55:16 +0200 Subject: [PATCH] wil6210: Remove msm platform related code Current implementation depends on msm-bus driver which is not merged into mainline kernel therefore this code is removed Signed-off-by: Hamad Kadmany Signed-off-by: Vladimir Kondratiev Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/wil6210/Kconfig | 9 - drivers/net/wireless/ath/wil6210/Makefile | 1 - .../net/wireless/ath/wil6210/wil_platform.c | 12 +- .../wireless/ath/wil6210/wil_platform_msm.c | 257 ------------------ .../wireless/ath/wil6210/wil_platform_msm.h | 24 -- 5 files changed, 1 insertion(+), 302 deletions(-) delete mode 100644 drivers/net/wireless/ath/wil6210/wil_platform_msm.c delete mode 100644 drivers/net/wireless/ath/wil6210/wil_platform_msm.h diff --git a/drivers/net/wireless/ath/wil6210/Kconfig b/drivers/net/wireless/ath/wil6210/Kconfig index 481680a3aa55..ce8c0381825e 100644 --- a/drivers/net/wireless/ath/wil6210/Kconfig +++ b/drivers/net/wireless/ath/wil6210/Kconfig @@ -39,12 +39,3 @@ config WIL6210_TRACING option if you are interested in debugging the driver. If unsure, say Y to make it easier to debug problems. - -config WIL6210_PLATFORM_MSM - bool "wil6210 MSM platform specific support" - depends on WIL6210 - depends on ARCH_MSM - default y - ---help--- - Say Y here to enable wil6210 driver support for MSM - platform specific features diff --git a/drivers/net/wireless/ath/wil6210/Makefile b/drivers/net/wireless/ath/wil6210/Makefile index 8ad4b5f97e04..caa717bf52f3 100644 --- a/drivers/net/wireless/ath/wil6210/Makefile +++ b/drivers/net/wireless/ath/wil6210/Makefile @@ -14,7 +14,6 @@ wil6210-y += ioctl.o wil6210-y += fw.o wil6210-$(CONFIG_WIL6210_TRACING) += trace.o wil6210-y += wil_platform.o -wil6210-$(CONFIG_WIL6210_PLATFORM_MSM) += wil_platform_msm.o wil6210-y += ethtool.o # for tracing framework to find trace.h diff --git a/drivers/net/wireless/ath/wil6210/wil_platform.c b/drivers/net/wireless/ath/wil6210/wil_platform.c index 8f1d78f8a74d..976a071ba74e 100644 --- a/drivers/net/wireless/ath/wil6210/wil_platform.c +++ b/drivers/net/wireless/ath/wil6210/wil_platform.c @@ -17,10 +17,6 @@ #include "linux/device.h" #include "wil_platform.h" -#ifdef CONFIG_WIL6210_PLATFORM_MSM -#include "wil_platform_msm.h" -#endif - /** * wil_platform_init() - wil6210 platform module init * @@ -37,13 +33,7 @@ void *wil_platform_init(struct device *dev, struct wil_platform_ops *ops) return NULL; } -#ifdef CONFIG_WIL6210_PLATFORM_MSM - handle = wil_platform_msm_init(dev, ops); - if (handle) - return handle; -#endif - - /* other platform specific init functions should be called here */ + /* platform specific init functions should be called here */ return handle; } diff --git a/drivers/net/wireless/ath/wil6210/wil_platform_msm.c b/drivers/net/wireless/ath/wil6210/wil_platform_msm.c deleted file mode 100644 index b354a743240d..000000000000 --- a/drivers/net/wireless/ath/wil6210/wil_platform_msm.c +++ /dev/null @@ -1,257 +0,0 @@ -/* - * Copyright (c) 2014 Qualcomm Atheros, Inc. - * - * Permission to use, copy, modify, and/or distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#include -#include -#include - -#include "wil_platform.h" -#include "wil_platform_msm.h" - -/** - * struct wil_platform_msm - wil6210 msm platform module info - * - * @dev: device object - * @msm_bus_handle: handle for using msm_bus API - * @pdata: bus scale info retrieved from DT - */ -struct wil_platform_msm { - struct device *dev; - uint32_t msm_bus_handle; - struct msm_bus_scale_pdata *pdata; -}; - -#define KBTOB(a) (a * 1000ULL) - -/** - * wil_platform_get_pdata() - Generate bus client data from device tree - * provided by clients. - * - * dev: device object - * of_node: Device tree node to extract information from - * - * The function returns a valid pointer to the allocated bus-scale-pdata - * if the vectors were correctly read from the client's device node. - * Any error in reading or parsing the device node will return NULL - * to the caller. - */ -static struct msm_bus_scale_pdata *wil_platform_get_pdata( - struct device *dev, - struct device_node *of_node) -{ - struct msm_bus_scale_pdata *pdata; - struct msm_bus_paths *usecase; - int i, j, ret, len; - unsigned int num_usecases, num_paths, mem_size; - const uint32_t *vec_arr; - struct msm_bus_vectors *vectors; - - /* first read num_usecases and num_paths so we can calculate - * amount of memory to allocate - */ - ret = of_property_read_u32(of_node, "qcom,msm-bus,num-cases", - &num_usecases); - if (ret) { - dev_err(dev, "Error: num-usecases not found\n"); - return NULL; - } - - ret = of_property_read_u32(of_node, "qcom,msm-bus,num-paths", - &num_paths); - if (ret) { - dev_err(dev, "Error: num_paths not found\n"); - return NULL; - } - - /* pdata memory layout: - * msm_bus_scale_pdata - * msm_bus_paths[num_usecases] - * msm_bus_vectors[num_usecases][num_paths] - */ - mem_size = sizeof(struct msm_bus_scale_pdata) + - sizeof(struct msm_bus_paths) * num_usecases + - sizeof(struct msm_bus_vectors) * num_usecases * num_paths; - - pdata = kzalloc(mem_size, GFP_KERNEL); - if (!pdata) - return NULL; - - ret = of_property_read_string(of_node, "qcom,msm-bus,name", - &pdata->name); - if (ret) { - dev_err(dev, "Error: Client name not found\n"); - goto err; - } - - if (of_property_read_bool(of_node, "qcom,msm-bus,active-only")) { - pdata->active_only = 1; - } else { - dev_info(dev, "active_only flag absent.\n"); - dev_info(dev, "Using dual context by default\n"); - } - - pdata->num_usecases = num_usecases; - pdata->usecase = (struct msm_bus_paths *)(pdata + 1); - - vec_arr = of_get_property(of_node, "qcom,msm-bus,vectors-KBps", &len); - if (vec_arr == NULL) { - dev_err(dev, "Error: Vector array not found\n"); - goto err; - } - - if (len != num_usecases * num_paths * sizeof(uint32_t) * 4) { - dev_err(dev, "Error: Length-error on getting vectors\n"); - goto err; - } - - vectors = (struct msm_bus_vectors *)(pdata->usecase + num_usecases); - for (i = 0; i < num_usecases; i++) { - usecase = &pdata->usecase[i]; - usecase->num_paths = num_paths; - usecase->vectors = &vectors[i]; - - for (j = 0; j < num_paths; j++) { - int index = ((i * num_paths) + j) * 4; - - usecase->vectors[j].src = be32_to_cpu(vec_arr[index]); - usecase->vectors[j].dst = - be32_to_cpu(vec_arr[index + 1]); - usecase->vectors[j].ab = (uint64_t) - KBTOB(be32_to_cpu(vec_arr[index + 2])); - usecase->vectors[j].ib = (uint64_t) - KBTOB(be32_to_cpu(vec_arr[index + 3])); - } - } - - return pdata; - -err: - kfree(pdata); - - return NULL; -} - -/* wil_platform API (callbacks) */ - -static int wil_platform_bus_request(void *handle, - uint32_t kbps /* KBytes/Sec */) -{ - int rc, i; - struct wil_platform_msm *msm = (struct wil_platform_msm *)handle; - int vote = 0; /* vote 0 in case requested kbps cannot be satisfied */ - struct msm_bus_paths *usecase; - uint32_t usecase_kbps; - uint32_t min_kbps = ~0; - - /* find the lowest usecase that is bigger than requested kbps */ - for (i = 0; i < msm->pdata->num_usecases; i++) { - usecase = &msm->pdata->usecase[i]; - /* assume we have single path (vectors[0]). If we ever - * have multiple paths, need to define the behavior */ - usecase_kbps = div64_u64(usecase->vectors[0].ib, 1000); - if (usecase_kbps >= kbps && usecase_kbps < min_kbps) { - min_kbps = usecase_kbps; - vote = i; - } - } - - rc = msm_bus_scale_client_update_request(msm->msm_bus_handle, vote); - if (rc) - dev_err(msm->dev, "Failed msm_bus voting. kbps=%d vote=%d, rc=%d\n", - kbps, vote, rc); - else - /* TOOD: remove */ - dev_info(msm->dev, "msm_bus_scale_client_update_request succeeded. kbps=%d vote=%d\n", - kbps, vote); - - return rc; -} - -static void wil_platform_uninit(void *handle) -{ - struct wil_platform_msm *msm = (struct wil_platform_msm *)handle; - - dev_info(msm->dev, "wil_platform_uninit\n"); - - if (msm->msm_bus_handle) - msm_bus_scale_unregister_client(msm->msm_bus_handle); - - kfree(msm->pdata); - kfree(msm); -} - -static int wil_platform_msm_bus_register(struct wil_platform_msm *msm, - struct device_node *node) -{ - msm->pdata = wil_platform_get_pdata(msm->dev, node); - if (!msm->pdata) { - dev_err(msm->dev, "Failed getting DT info\n"); - return -EINVAL; - } - - msm->msm_bus_handle = msm_bus_scale_register_client(msm->pdata); - if (!msm->msm_bus_handle) { - dev_err(msm->dev, "Failed msm_bus registration\n"); - return -EINVAL; - } - - dev_info(msm->dev, "msm_bus registration succeeded! handle 0x%x\n", - msm->msm_bus_handle); - - return 0; -} - -/** - * wil_platform_msm_init() - wil6210 msm platform module init - * - * The function must be called before all other functions in this module. - * It returns a handle which is used with the rest of the API - * - */ -void *wil_platform_msm_init(struct device *dev, struct wil_platform_ops *ops) -{ - struct device_node *of_node; - struct wil_platform_msm *msm; - int rc; - - of_node = of_find_compatible_node(NULL, NULL, "qcom,wil6210"); - if (!of_node) { - /* this could mean non-msm platform */ - dev_err(dev, "DT node not found\n"); - return NULL; - } - - msm = kzalloc(sizeof(*msm), GFP_KERNEL); - if (!msm) - return NULL; - - msm->dev = dev; - - /* register with msm_bus module for scaling requests */ - rc = wil_platform_msm_bus_register(msm, of_node); - if (rc) - goto cleanup; - - memset(ops, 0, sizeof(*ops)); - ops->bus_request = wil_platform_bus_request; - ops->uninit = wil_platform_uninit; - - return (void *)msm; - -cleanup: - kfree(msm); - return NULL; -} diff --git a/drivers/net/wireless/ath/wil6210/wil_platform_msm.h b/drivers/net/wireless/ath/wil6210/wil_platform_msm.h deleted file mode 100644 index 2f2229edb498..000000000000 --- a/drivers/net/wireless/ath/wil6210/wil_platform_msm.h +++ /dev/null @@ -1,24 +0,0 @@ -/* - * Copyright (c) 2014 Qualcomm Atheros, Inc. - * - * Permission to use, copy, modify, and/or distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#ifndef __WIL_PLATFORM__MSM_H__ -#define __WIL_PLATFORM_MSM_H__ - -#include "wil_platform.h" - -void *wil_platform_msm_init(struct device *dev, struct wil_platform_ops *ops); - -#endif /* __WIL_PLATFORM__MSM_H__ */ -- 2.30.2