From: Yu Tu <yu.tu@amlogic.com>
To: <linux-serial@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-amlogic@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Rob Herring <robh+dt@kernel.org>,
Jiri Slaby <jirislaby@kernel.org>,
Neil Armstrong <narmstrong@baylibre.com>,
Kevin Hilman <khilman@baylibre.com>,
Jerome Brunet <jbrunet@baylibre.com>,
Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
Yu Tu <yu.tu@amlogic.com>
Subject: [PATCH V4 4/5] tty: serial: meson: Make the bit24 and
Date: Mon, 10 Jan 2022 16:56:03 +0800 [thread overview]
Message-ID: <20220110085604.18042-5-yu.tu@amlogic.com> (raw)
In-Reply-To: <20220110085604.18042-1-yu.tu@amlogic.com>
The UART_REG5 register defaults to 0. The console port is set in
ROMCODE. But other UART ports default to 0, so make bit24 and
bit[26,27] writable so that the UART can choose a more
appropriate clock.
Signed-off-by: Yu Tu <yu.tu@amlogic.com>
---
drivers/tty/serial/meson_uart.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/tty/serial/meson_uart.c b/drivers/tty/serial/meson_uart.c
index 1004fd0b0c9e..fd128878e91a 100644
--- a/drivers/tty/serial/meson_uart.c
+++ b/drivers/tty/serial/meson_uart.c
@@ -693,7 +693,7 @@ static int meson_uart_probe_clocks(struct uart_port *port)
CLK_SET_RATE_NO_REPARENT,
port->membase + AML_UART_REG5,
26, 2,
- CLK_DIVIDER_READ_ONLY,
+ CLK_DIVIDER_ROUND_CLOSEST,
xtal_div_table, NULL);
if (IS_ERR(hw))
return PTR_ERR(hw);
@@ -719,7 +719,7 @@ static int meson_uart_probe_clocks(struct uart_port *port)
CLK_SET_RATE_PARENT,
port->membase + AML_UART_REG5,
24, 0x1,
- CLK_MUX_READ_ONLY,
+ CLK_MUX_ROUND_CLOSEST,
NULL, NULL);
if (IS_ERR(hw))
return PTR_ERR(hw);
--
2.33.1
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next prev parent reply other threads:[~2022-01-10 9:22 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-10 8:55 [PATCH V4 0/5] the UART driver compatible with Yu Tu
2022-01-10 8:56 ` [PATCH V4 1/5] dt-bindings: serial: meson: Drop Yu Tu
2022-01-10 8:56 ` [PATCH V4 2/5] tty: serial: meson: Request the register Yu Tu
2022-01-10 8:56 ` [PATCH V4 3/5] tty: serial: meson: The UART baud rate Yu Tu
2022-01-10 14:29 ` Jerome Brunet
2022-01-11 7:04 ` Yu Tu
2022-01-17 8:26 ` Jerome Brunet
2022-01-17 9:03 ` Yu Tu
2022-01-12 16:08 ` kernel test robot
2022-01-12 20:05 ` kernel test robot
2022-01-10 8:56 ` Yu Tu [this message]
2022-01-10 8:56 ` [PATCH V4 5/5] tty: serial: meson: Added S4 SOC compatibility Yu Tu
2022-01-10 9:27 ` [PATCH V4 0/5] the UART driver compatible with Neil Armstrong
2022-01-10 9:35 ` Yu Tu
2022-01-10 9:43 ` Neil Armstrong
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