Verification failed on Tegra.
Fix here is, IIR should be masked with UART_IIR_MASK after reading the IIR register as on Tegra bit-6 is used for internal usage to know if FIFO mode is enabled.
while (1) {
iir = tegra_uart_read(tup, UART_IIR);
+iir &= UART_IIR_MASK;
Thanks,
Shardar
-----Original Message-----
From: Laxman Dewangan
Sent: Thursday, March 30, 2017 3:48 PM
To: Olliver Schinagl <oliver@xxxxxxxxxxx>; Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>; Jiri Slaby <jslaby@xxxxxxxx>; Stephen Warren <swarren@xxxxxxxxxxxxx>; Thierry Reding <thierry.reding@xxxxxxxxx>; Alexandre Courbot <gnurou@xxxxxxxxx>
Cc: linux-serial@xxxxxxxxxxxxxxx; linux-tegra@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; Shardar Mohammed <smohammed@xxxxxxxxxx>
Subject: Re: [PATCH] serial: tegra: Map the iir register to default defines
On Thursday 30 March 2017 12:18 AM, Olliver Schinagl wrote:
> The tegra serial IP seems to be following the common layout and the
> interrupt ID's match up nicely. Replace the magic values to match the
> common serial_reg defines, with the addition of the Tegra unique End
> of Data interrupt.
>
> Signed-off-by: Olliver Schinagl <oliver@xxxxxxxxxxx>
> ---
Adding Shardar for verifications.
Acked-by: Laxman Dewangan <ldewangan@xxxxxxxxxx>
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