af00e1b7ca
Add support of low priority voltage corners lowsvs and svs in mmrm driver. This logic maintains a list of clients which are to be proritize to be throtlled to low power in order to satisfy high priority client's power requiretment. Change-Id: Ia7f912e41bbcff057c0732cc7c2b16e327c59fd8 Signed-off-by: Mahesh Kumar Sharma <smahesh@codeaurora.org>
125 lines
2.5 KiB
C
125 lines
2.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2020-2021, The Linux Foundation. All rights reserved.
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*/
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#include <linux/types.h>
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#include <linux/of_platform.h>
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#include "mmrm_internal.h"
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#include "mmrm_debug.h"
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static struct mmrm_common_data waipio_common_data[] = {
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{
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.key = "qcom,mmrm_clk_threshold",
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.value = 9000,
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},
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{
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.key = "qcom,mmrm_clk_mgr_scheme",
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.value = CLK_MGR_SCHEME_SW,
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},
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};
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/*throttle client list is as per fdd & resource availability*/
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static struct mmrm_throttle_clients_data waipio_throttle_clients_data[] = {
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{
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.domain = MMRM_CLIENT_DOMAIN_DISPLAY,
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.id = 0x3d,
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},
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{
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.domain = MMRM_CLIENT_DOMAIN_VIDEO,
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.id = 0x03,
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},
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{
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.domain = MMRM_CLIENT_DOMAIN_CAMERA,
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.id = 0x46,
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},
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{
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.domain = MMRM_CLIENT_DOMAIN_CVP,
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.id = 0x08,
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},
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{
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.domain = MMRM_CLIENT_DOMAIN_CAMERA,
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.id = 0x02,
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},
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};
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static struct mmrm_platform_data waipio_data = {
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.common_data = waipio_common_data,
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.common_data_length = ARRAY_SIZE(waipio_common_data),
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.throttle_clk_clients_data = waipio_throttle_clients_data,
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.throttle_clk_clients_data_length = ARRAY_SIZE(waipio_throttle_clients_data),
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};
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static const struct of_device_id mmrm_dt_match[] = {
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{
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.compatible = "qcom,waipio-mmrm",
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.data = &waipio_data,
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},
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{},
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};
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struct mmrm_platform_data *mmrm_get_platform_data(struct device *dev)
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{
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struct mmrm_platform_data *platform_data = NULL;
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const struct of_device_id *match;
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match = of_match_node(mmrm_dt_match, dev->of_node);
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if (match)
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platform_data = (struct mmrm_platform_data *)match->data;
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if (!platform_data)
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goto exit;
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/* add additional config checks for platform data */
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exit:
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return platform_data;
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}
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int mmrm_init(struct mmrm_driver_data *drv_data)
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{
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int rc = 0;
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/* get clk resource mgr ops */
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rc = mmrm_get_clk_mgr_ops(drv_data);
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if (rc) {
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d_mpr_e("%s: init clk mgr failed\n", __func__);
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goto err_get_clk_mgr_ops;
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}
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/* clock resource mgr */
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rc = drv_data->clk_mgr_ops->init_clk_mgr(drv_data);
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if (rc) {
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d_mpr_e("%s: init clk mgr failed\n", __func__);
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goto err_init_clk_mgr;
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}
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return rc;
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err_init_clk_mgr:
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err_get_clk_mgr_ops:
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return rc;
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}
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int mmrm_deinit(struct mmrm_driver_data *drv_data)
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{
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int rc = 0;
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if (!drv_data || !drv_data->clk_mgr_ops ||
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!drv_data->clk_mgr_ops->destroy_clk_mgr) {
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d_mpr_e("%s: invalid driver data or clk mgr ops\n", __func__);
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return -EINVAL;
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}
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/* destroy clock resource mgr */
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rc = drv_data->clk_mgr_ops->destroy_clk_mgr(drv_data->clk_mgr);
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if (rc) {
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d_mpr_e("%s: destroy clk mgr failed\n", __func__);
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drv_data->clk_mgr = NULL;
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}
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return rc;
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}
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