On Mon, Nov 14, 2016 at 06:19:12PM +0530, Amitkumar Karwar wrote:
> From: Rajat Jain <rajatja@xxxxxxxxxx>
>
> Commit ce4f6f0c353b ("mwifiex: add platform specific wakeup interrupt
> support") added WoWLAN feature only for sdio. This patch moves that
> code to the common module so that all the interface drivers can use
> it for free. It enables pcie and sdio for its use currently.
>
> Signed-off-by: Rajat Jain <rajatja@xxxxxxxxxx>
> ---
> v2: v1 doesn't apply smoothly on latest code due to recently merged
> patch "mwifiex: report error to PCIe for suspend failure". Minor
> conflict is resolved in v2
> v3: Same as v2
For the whole series:
Reviewed-by: Brian Norris <briannorris@xxxxxxxxxxxx>
I think there are some trivial conflicts with one of your/our other
series, but that can be worked out once one of them is accepted. I also
expect you'll send patches to fix the existing bugs I noted already.
Also, this implicitly extends device tree support to PCIe devices. While
that's probably OK, it would be good to promptly update a patch like
this:
[PATCH v6] mwifiex: parse device tree node for PCIe
https://patchwork.kernel.org/patch/9390225/
to check for the appropriate compatible properties before accepting the
device and registering the card. That patch should be just a little bit
simpler on top of this patch set.
Brian
> ---
> drivers/net/wireless/marvell/mwifiex/main.c | 41 ++++++++++++++++
> drivers/net/wireless/marvell/mwifiex/main.h | 25 ++++++++++
> drivers/net/wireless/marvell/mwifiex/pcie.c | 2 +
> drivers/net/wireless/marvell/mwifiex/sdio.c | 72 ++---------------------------
> drivers/net/wireless/marvell/mwifiex/sdio.h | 8 ----
> 5 files changed, 73 insertions(+), 75 deletions(-)
>
> diff --git a/drivers/net/wireless/marvell/mwifiex/main.c b/drivers/net/wireless/marvell/mwifiex/main.c
> index 835d330..948f5c2 100644
> --- a/drivers/net/wireless/marvell/mwifiex/main.c
> +++ b/drivers/net/wireless/marvell/mwifiex/main.c
> @@ -1552,14 +1552,55 @@ void mwifiex_do_flr(struct mwifiex_adapter *adapter, bool prepare)
> }
> EXPORT_SYMBOL_GPL(mwifiex_do_flr);
>
> +static irqreturn_t mwifiex_irq_wakeup_handler(int irq, void *priv)
> +{
> + struct mwifiex_adapter *adapter = priv;
> +
> + if (adapter->irq_wakeup >= 0) {
> + dev_dbg(adapter->dev, "%s: wake by wifi", __func__);
> + adapter->wake_by_wifi = true;
> + disable_irq_nosync(irq);
> + }
> +
> + /* Notify PM core we are wakeup source */
> + pm_wakeup_event(adapter->dev, 0);
> +
> + return IRQ_HANDLED;
> +}
> +
> static void mwifiex_probe_of(struct mwifiex_adapter *adapter)
> {
> + int ret;
> struct device *dev = adapter->dev;
>
> if (!dev->of_node)
> return;
>
> adapter->dt_node = dev->of_node;
> + adapter->irq_wakeup = irq_of_parse_and_map(adapter->dt_node, 0);
> + if (!adapter->irq_wakeup) {
> + dev_info(dev, "fail to parse irq_wakeup from device tree\n");
> + return;
> + }
> +
> + ret = devm_request_irq(dev, adapter->irq_wakeup,
> + mwifiex_irq_wakeup_handler, IRQF_TRIGGER_LOW,
> + "wifi_wake", adapter);
> + if (ret) {
> + dev_err(dev, "Failed to request irq_wakeup %d (%d)\n",
> + adapter->irq_wakeup, ret);
> + goto err_exit;
> + }
> +
> + disable_irq(adapter->irq_wakeup);
> + if (device_init_wakeup(dev, true)) {
> + dev_err(dev, "fail to init wakeup for mwifiex\n");
> + goto err_exit;
> + }
> + return;
> +
> +err_exit:
> + adapter->irq_wakeup = 0;
> }
>
> /*
> diff --git a/drivers/net/wireless/marvell/mwifiex/main.h b/drivers/net/wireless/marvell/mwifiex/main.h
> index 549e1ba..ae5afe5 100644
> --- a/drivers/net/wireless/marvell/mwifiex/main.h
> +++ b/drivers/net/wireless/marvell/mwifiex/main.h
> @@ -1011,6 +1011,10 @@ struct mwifiex_adapter {
> bool usb_mc_setup;
> struct cfg80211_wowlan_nd_info *nd_info;
> struct ieee80211_regdomain *regd;
> +
> + /* Wake-on-WLAN (WoWLAN) */
> + int irq_wakeup;
> + bool wake_by_wifi;
> };
>
> void mwifiex_process_tx_queue(struct mwifiex_adapter *adapter);
> @@ -1410,6 +1414,27 @@ static inline u8 mwifiex_is_tdls_link_setup(u8 status)
> return false;
> }
>
> +/* Disable platform specific wakeup interrupt */
> +static inline void mwifiex_disable_wake(struct mwifiex_adapter *adapter)
> +{
> + if (adapter->irq_wakeup >= 0) {
> + disable_irq_wake(adapter->irq_wakeup);
> + if (!adapter->wake_by_wifi)
> + disable_irq(adapter->irq_wakeup);
> + }
> +}
> +
> +/* Enable platform specific wakeup interrupt */
> +static inline void mwifiex_enable_wake(struct mwifiex_adapter *adapter)
> +{
> + /* Enable platform specific wakeup interrupt */
> + if (adapter->irq_wakeup >= 0) {
> + adapter->wake_by_wifi = false;
> + enable_irq(adapter->irq_wakeup);
> + enable_irq_wake(adapter->irq_wakeup);
> + }
> +}
> +
> int mwifiex_init_shutdown_fw(struct mwifiex_private *priv,
> u32 func_init_shutdown);
> int mwifiex_add_card(void *card, struct semaphore *sem,
> diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c b/drivers/net/wireless/marvell/mwifiex/pcie.c
> index de6939c..7942b28 100644
> --- a/drivers/net/wireless/marvell/mwifiex/pcie.c
> +++ b/drivers/net/wireless/marvell/mwifiex/pcie.c
> @@ -131,6 +131,7 @@ static int mwifiex_pcie_suspend(struct device *dev)
> }
>
> adapter = card->adapter;
> + mwifiex_enable_wake(adapter);
>
> /* Enable the Host Sleep */
> if (!mwifiex_enable_hs(adapter)) {
> @@ -186,6 +187,7 @@ static int mwifiex_pcie_resume(struct device *dev)
>
> mwifiex_cancel_hs(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA),
> MWIFIEX_ASYNC_CMD);
> + mwifiex_disable_wake(adapter);
>
> return 0;
> }
> diff --git a/drivers/net/wireless/marvell/mwifiex/sdio.c b/drivers/net/wireless/marvell/mwifiex/sdio.c
> index c95f41f..7055282 100644
> --- a/drivers/net/wireless/marvell/mwifiex/sdio.c
> +++ b/drivers/net/wireless/marvell/mwifiex/sdio.c
> @@ -79,67 +79,18 @@
> { }
> };
>
> -static irqreturn_t mwifiex_wake_irq_wifi(int irq, void *priv)
> -{
> - struct mwifiex_plt_wake_cfg *cfg = priv;
> -
> - if (cfg->irq_wifi >= 0) {
> - pr_info("%s: wake by wifi", __func__);
> - cfg->wake_by_wifi = true;
> - disable_irq_nosync(irq);
> - }
> -
> - /* Notify PM core we are wakeup source */
> - pm_wakeup_event(cfg->dev, 0);
> -
> - return IRQ_HANDLED;
> -}
> -
> /* This function parse device tree node using mmc subnode devicetree API.
> * The device node is saved in card->plt_of_node.
> * if the device tree node exist and include interrupts attributes, this
> * function will also request platform specific wakeup interrupt.
> */
> -static int mwifiex_sdio_probe_of(struct device *dev, struct sdio_mmc_card *card)
> +static int mwifiex_sdio_probe_of(struct device *dev)
> {
> - struct mwifiex_plt_wake_cfg *cfg;
> - int ret;
> -
> if (!of_match_node(mwifiex_sdio_of_match_table, dev->of_node)) {
> dev_err(dev, "required compatible string missing\n");
> return -EINVAL;
> }
>
> - card->plt_of_node = dev->of_node;
> - card->plt_wake_cfg = devm_kzalloc(dev, sizeof(*card->plt_wake_cfg),
> - GFP_KERNEL);
> - cfg = card->plt_wake_cfg;
> - if (cfg && card->plt_of_node) {
> - cfg->dev = dev;
> - cfg->irq_wifi = irq_of_parse_and_map(card->plt_of_node, 0);
> - if (!cfg->irq_wifi) {
> - dev_dbg(dev,
> - "fail to parse irq_wifi from device tree\n");
> - } else {
> - ret = devm_request_irq(dev, cfg->irq_wifi,
> - mwifiex_wake_irq_wifi,
> - IRQF_TRIGGER_LOW,
> - "wifi_wake", cfg);
> - if (ret) {
> - dev_dbg(dev,
> - "Failed to request irq_wifi %d (%d)\n",
> - cfg->irq_wifi, ret);
> - card->plt_wake_cfg = NULL;
> - return 0;
> - }
> - disable_irq(cfg->irq_wifi);
> - }
> - }
> -
> - ret = device_init_wakeup(dev, true);
> - if (ret)
> - dev_err(dev, "fail to init wakeup for mwifiex");
> -
> return 0;
> }
>
> @@ -198,11 +149,9 @@ static int mwifiex_sdio_probe_of(struct device *dev, struct sdio_mmc_card *card)
>
> /* device tree node parsing and platform specific configuration*/
> if (func->dev.of_node) {
> - ret = mwifiex_sdio_probe_of(&func->dev, card);
> - if (ret) {
> - dev_err(&func->dev, "SDIO dt node parse failed\n");
> + ret = mwifiex_sdio_probe_of(&func->dev);
> + if (ret)
> goto err_disable;
> - }
> }
>
> ret = mwifiex_add_card(card, &add_remove_card_sem, &sdio_ops,
> @@ -267,12 +216,7 @@ static int mwifiex_sdio_resume(struct device *dev)
> mwifiex_cancel_hs(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA),
> MWIFIEX_SYNC_CMD);
>
> - /* Disable platform specific wakeup interrupt */
> - if (card->plt_wake_cfg && card->plt_wake_cfg->irq_wifi >= 0) {
> - disable_irq_wake(card->plt_wake_cfg->irq_wifi);
> - if (!card->plt_wake_cfg->wake_by_wifi)
> - disable_irq(card->plt_wake_cfg->irq_wifi);
> - }
> + mwifiex_disable_wake(adapter);
>
> return 0;
> }
> @@ -352,13 +296,7 @@ static int mwifiex_sdio_suspend(struct device *dev)
> }
>
> adapter = card->adapter;
> -
> - /* Enable platform specific wakeup interrupt */
> - if (card->plt_wake_cfg && card->plt_wake_cfg->irq_wifi >= 0) {
> - card->plt_wake_cfg->wake_by_wifi = false;
> - enable_irq(card->plt_wake_cfg->irq_wifi);
> - enable_irq_wake(card->plt_wake_cfg->irq_wifi);
> - }
> + mwifiex_enable_wake(adapter);
>
> /* Enable the Host Sleep */
> if (!mwifiex_enable_hs(adapter)) {
> diff --git a/drivers/net/wireless/marvell/mwifiex/sdio.h b/drivers/net/wireless/marvell/mwifiex/sdio.h
> index 07cdd23..b9fbc5c 100644
> --- a/drivers/net/wireless/marvell/mwifiex/sdio.h
> +++ b/drivers/net/wireless/marvell/mwifiex/sdio.h
> @@ -154,12 +154,6 @@
> a->mpa_rx.start_port = 0; \
> } while (0)
>
> -struct mwifiex_plt_wake_cfg {
> - struct device *dev;
> - int irq_wifi;
> - bool wake_by_wifi;
> -};
> -
> /* data structure for SDIO MPA TX */
> struct mwifiex_sdio_mpa_tx {
> /* multiport tx aggregation buffer pointer */
> @@ -243,8 +237,6 @@ struct mwifiex_sdio_card_reg {
> struct sdio_mmc_card {
> struct sdio_func *func;
> struct mwifiex_adapter *adapter;
> - struct device_node *plt_of_node;
> - struct mwifiex_plt_wake_cfg *plt_wake_cfg;
>
> const char *firmware;
> const struct mwifiex_sdio_card_reg *reg;
> --
> 1.9.1
>
