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From: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
To: Linus Walleij <linus.walleij@linaro.org>,
	Bartosz Golaszewski <bgolaszewski@baylibre.com>,
	Lee Jones <lee.jones@linaro.org>
Cc: Andrew Lunn <andrew@lunn.ch>,
	Andy Shevchenko <andy.shevchenko@gmail.com>,
	linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org,
	Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Subject: [PATCH v2 7/7] mfd: tqmx86: assume 24MHz LPC clock for unknown boards
Date: Fri,  2 Jul 2021 14:23:53 +0200	[thread overview]
Message-ID: <384f4c0070fc95e4e688731876178f9299861aa7.1625227382.git.matthias.schiffer@ew.tq-group.com> (raw)
In-Reply-To: <cover.1625227382.git.matthias.schiffer@ew.tq-group.com>
In-Reply-To: <cover.1625227382.git.matthias.schiffer@ew.tq-group.com>

All future TQMx86 modules should use a 24MHz LPC clock. Warn about
unknown boards, but assume this is the case.

Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
---

v2:
- Separated from TQMxE40M support patch
- Add warning for unknown boards


 drivers/mfd/tqmx86.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/mfd/tqmx86.c b/drivers/mfd/tqmx86.c
index 58f35c8b5a45..7ae906ff8e35 100644
--- a/drivers/mfd/tqmx86.c
+++ b/drivers/mfd/tqmx86.c
@@ -147,7 +147,7 @@ static const char *tqmx86_board_id_to_name(u8 board_id)
 	}
 }
 
-static int tqmx86_board_id_to_clk_rate(u8 board_id)
+static int tqmx86_board_id_to_clk_rate(struct device *dev, u8 board_id)
 {
 	switch (board_id) {
 	case TQMX86_REG_BOARD_ID_50UC:
@@ -168,7 +168,9 @@ static int tqmx86_board_id_to_clk_rate(u8 board_id)
 	case TQMX86_REG_BOARD_ID_E38C:
 		return 33000;
 	default:
-		return 0;
+		dev_warn(dev, "unknown board %d, assuming 24MHz LPC clock\n",
+			 board_id);
+		return 24000;
 	}
 }
 
@@ -229,7 +231,7 @@ static int tqmx86_probe(struct platform_device *pdev)
 		tqmx_gpio_resources[0].flags = 0;
 	}
 
-	ocores_platform_data.clock_khz = tqmx86_board_id_to_clk_rate(board_id);
+	ocores_platform_data.clock_khz = tqmx86_board_id_to_clk_rate(dev, board_id);
 
 	if (i2c_det == TQMX86_REG_I2C_DETECT_SOFT) {
 		err = devm_mfd_add_devices(dev, PLATFORM_DEVID_NONE,
-- 
2.17.1


  parent reply	other threads:[~2021-07-02 12:24 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-02 12:23 [PATCH v2 0/7] TQMx86: TQMx110EB and TQMxE40x MFD/GPIO support Matthias Schiffer
2021-07-02 12:23 ` [PATCH v2 1/7] gpio: tqmx86: really make IRQ optional Matthias Schiffer
2021-07-02 13:45   ` Andrew Lunn
2021-07-02 14:14     ` Andy Shevchenko
2021-07-02 12:23 ` [PATCH v2 2/7] mfd: tqmx86: clear GPIO IRQ resource when no IRQ is set Matthias Schiffer
2021-07-02 13:52   ` Andrew Lunn
2021-07-02 12:23 ` [PATCH v2 3/7] mfd: tqmx86: remove incorrect TQMx90UC board ID Matthias Schiffer
2021-07-02 13:56   ` Andrew Lunn
2021-07-02 12:23 ` [PATCH v2 4/7] mfd: tqmx86: fix typo in "platform" Matthias Schiffer
2021-07-02 14:00   ` Andrew Lunn
2021-07-02 12:23 ` [PATCH v2 5/7] mfd: tqmx86: add support for TQMx110EB and TQMxE40x Matthias Schiffer
2021-07-02 14:01   ` Andrew Lunn
2021-07-02 12:23 ` [PATCH v2 6/7] mfd: tqmx86: add support for TQ-Systems DMI IDs Matthias Schiffer
2021-07-02 14:01   ` Andrew Lunn
2021-07-02 12:23 ` Matthias Schiffer [this message]
2021-07-02 14:04   ` [PATCH v2 7/7] mfd: tqmx86: assume 24MHz LPC clock for unknown boards Andrew Lunn
2021-07-02 13:41 ` [PATCH v2 0/7] TQMx86: TQMx110EB and TQMxE40x MFD/GPIO support Andrew Lunn
2021-07-05  7:13   ` Matthias Schiffer
2021-07-16  9:20 ` Lee Jones
2021-07-16  9:23   ` Matthias Schiffer
2021-07-16  9:42     ` Lee Jones

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