From: "Philippe Mathieu-Daudé" <f4bug@amsat.org>
To: Bin Meng <bmeng.cn@gmail.com>,
Damien Hedde <damien.hedde@greensocs.com>,
"Edgar E . Iglesias" <edgar.iglesias@xilinx.com>,
Alistair Francis <alistair.francis@wdc.com>,
Peter Maydell <peter.maydell@linaro.org>
Cc: qemu-arm@nongnu.org, qemu-devel@nongnu.org
Subject: Re: [PATCH v2 5/5] hw/char: cadence_uart: Ignore access when unclocked or in reset for uart_{read, write}()
Date: Thu, 2 Sep 2021 08:11:21 +0200 [thread overview]
Message-ID: <bf3ad08b-f1c8-317d-6378-3e33b5279573@amsat.org> (raw)
In-Reply-To: <869636f3-6e6a-d5d3-e377-1634f8165aa4@amsat.org>
On 9/2/21 8:09 AM, Philippe Mathieu-Daudé wrote:
> On 9/1/21 5:27 AM, Bin Meng wrote:
>> Read or write to uart registers when unclocked or in reset should be
>> ignored. Add the check there, and as a result of this, the check in
>> uart_write_tx_fifo() is now unnecessary.
>>
>> Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
>>
>> ---
>>
>> Changes in v2:
>> - new patch: hw/char: cadence_uart: Ignore access when unclocked or in reset for uart_{read,write}()
>>
>> hw/char/cadence_uart.c | 15 ++++++++++-----
>> 1 file changed, 10 insertions(+), 5 deletions(-)
>
> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Just realized it is simpler to implement MemoryRegionOps::accepts().
next prev parent reply other threads:[~2021-09-02 6:12 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-01 3:27 [PATCH v2 0/5] hw/arm: xilinx_zynq: Fix upstream U-Boot boot failure Bin Meng
2021-09-01 3:27 ` [PATCH v2 1/5] hw/misc: zynq_slcr: Correctly compute output clocks in the reset exit phase Bin Meng
2021-09-01 3:27 ` [PATCH v2 2/5] hw/char: cadence_uart: Disable transmit when input clock is disabled Bin Meng
2021-09-01 3:27 ` [PATCH v2 3/5] hw/char: cadence_uart: Move clock/reset check to uart_can_receive() Bin Meng
2021-09-02 2:30 ` Alistair Francis
2021-09-02 6:00 ` Philippe Mathieu-Daudé
2021-09-01 3:27 ` [PATCH v2 4/5] hw/char: cadence_uart: Convert to memop_with_attrs() ops Bin Meng
2021-09-02 2:32 ` Alistair Francis
2021-09-01 3:27 ` [PATCH v2 5/5] hw/char: cadence_uart: Ignore access when unclocked or in reset for uart_{read, write}() Bin Meng
2021-09-01 8:32 ` [PATCH v2 5/5] hw/char: cadence_uart: Ignore access when unclocked or in reset for uart_{read,write}() Edgar E. Iglesias
2021-09-01 10:52 ` Bin Meng
2021-09-02 6:10 ` Philippe Mathieu-Daudé
2021-09-02 6:09 ` [PATCH v2 5/5] hw/char: cadence_uart: Ignore access when unclocked or in reset for uart_{read, write}() Philippe Mathieu-Daudé
2021-09-02 6:11 ` Philippe Mathieu-Daudé [this message]
2021-09-05 14:31 ` Bin Meng
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