linux-kernel - [PATCH net-next v3 12/12] net: stmmac: replace the en_tx_lpi

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Message-Id: <20230710090001.303225-13-brgl@bgdev.pl>
Date:   Mon, 10 Jul 2023 11:00:01 +0200
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Jose Abreu <joabreu@...opsys.com>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Vinod Koul <vkoul@...nel.org>,
        Bhupesh Sharma <bhupesh.sharma@...aro.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Samuel Holland <samuel@...lland.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Richard Cochran <richardcochran@...il.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Cc:     netdev@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-sunxi@...ts.linux.dev, linux-tegra@...r.kernel.org,
        linux-mediatek@...ts.infradead.org,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
        Andrew Halaney <ahalaney@...hat.com>
Subject: [PATCH net-next v3 12/12] net: stmmac: replace the en_tx_lpi_clockgating field with a flag

From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>

Drop the boolean field of the plat_stmmacenet_data structure in favor of a
simple bitfield flag.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Reviewed-by: Andrew Halaney <ahalaney@...hat.com>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c     | 2 +-
 drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 4 ++--
 include/linux/stmmac.h                                | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 2d68a6e84b0e..efe85b086abe 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -421,7 +421,7 @@ static int stmmac_enable_eee_mode(struct stmmac_priv *priv)
 	/* Check and enter in LPI mode */
 	if (!priv->tx_path_in_lpi_mode)
 		stmmac_set_eee_mode(priv, priv->hw,
-				priv->plat->en_tx_lpi_clockgating);
+			priv->plat->flags & STMMAC_FLAG_EN_TX_LPI_CLOCKGATING);
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index f51522cb0061..23d53ea04b24 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -466,8 +466,8 @@ stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac)
 	plat->force_sf_dma_mode =
 		of_property_read_bool(np, "snps,force_sf_dma_mode");
 
-	plat->en_tx_lpi_clockgating =
-		of_property_read_bool(np, "snps,en-tx-lpi-clockgating");
+	if (of_property_read_bool(np, "snps,en-tx-lpi-clockgating"))
+		plat->flags |= STMMAC_FLAG_EN_TX_LPI_CLOCKGATING;
 
 	/* Set the maxmtu to a default of JUMBO_LEN in case the
 	 * parameter is not present in the device tree.
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index c3769dad8238..ef67dba775d0 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -215,6 +215,7 @@ struct dwmac4_addrs {
 #define STMMAC_FLAG_EXT_SNAPSHOT_EN		BIT(8)
 #define STMMAC_FLAG_INT_SNAPSHOT_EN		BIT(9)
 #define STMMAC_FLAG_RX_CLK_RUNS_IN_LPI		BIT(10)
+#define STMMAC_FLAG_EN_TX_LPI_CLOCKGATING	BIT(11)
 
 struct plat_stmmacenet_data {
 	int bus_id;
@@ -280,7 +281,6 @@ struct plat_stmmacenet_data {
 	int has_gmac4;
 	int rss_en;
 	int mac_port_sel_speed;
-	bool en_tx_lpi_clockgating;
 	int has_xgmac;
 	u8 vlan_fail_q;
 	unsigned int eee_usecs_rate;
-- 
2.39.2