From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
To: Mason Yang <masonccyang@mxic.com.tw>,
broonie@kernel.org, marek.vasut@gmail.com,
linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org,
bbrezillon@kernel.org, linux-renesas-soc@vger.kernel.org,
Geert Uytterhoeven <geert+renesas@glider.be>
Cc: juliensu@mxic.com.tw, Simon Horman <horms@verge.net.au>,
zhengxunli@mxic.com.tw
Subject: Re: [PATCH v8 1/2] spi: Add Renesas R-Car Gen3 RPC-IF SPI controller driver
Date: Fri, 22 Mar 2019 20:43:28 +0300 [thread overview]
Message-ID: <75c4642b-536e-f596-158d-387a63a5f6c5@cogentembedded.com> (raw)
In-Reply-To: <1548658158-5460-2-git-send-email-masonccyang@mxic.com.tw>
Hello!
On 01/28/2019 09:49 AM, Mason Yang wrote:
> Add a driver for Renesas R-Car Gen3 RPC-IF SPI controller.
>
> Signed-off-by: Mason Yang <masonccyang@mxic.com.tw>
> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
I've just found an error due to which my flash couldn't be read.
[...]
> diff --git a/drivers/spi/spi-renesas-rpc.c b/drivers/spi/spi-renesas-rpc.c
> new file mode 100644
> index 0000000..ea12017
> --- /dev/null
> +++ b/drivers/spi/spi-renesas-rpc.c
> @@ -0,0 +1,804 @@
[...]
> +static void rpc_spi_mem_set_prep_op_cfg(struct spi_device *spi,
> + const struct spi_mem_op *op,
> + u64 *offs, size_t *len)
> +{
> + struct rpc_spi *rpc = spi_controller_get_devdata(spi->controller);
> + if (op->dummy.nbytes) {
> + rpc->smenr |= RPC_SMENR_DME;
> + rpc->dummy = RPC_SMDMCR_DMCYC(op->dummy.nbytes);
SMDMCR.DMCYC is in bits -- you forgot to multiply by 8.
> + rpc->totalxferlen += op->dummy.nbytes;
> + }[...]
> +static void rpc_spi_transfer_setup(struct rpc_spi *rpc,
> + struct spi_message *msg)
> +{
> + struct spi_transfer *t, xfer[4] = { };
> + u32 i, xfercnt, xferpos = 0;
[...]
> + if (xfercnt > 3 && xfer[2].len && xfer[2].tx_buf) {
> + rpc->smenr |= RPC_SMENR_DME;
> + rpc->dummy = RPC_SMDMCR_DMCYC(xfer[2].len);
Here as well, I guess.
[...]
MBR, Sergei
next prev parent reply other threads:[~2019-03-22 17:43 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-28 6:49 [PATCH v8 0/2] spi: Add Renesas R-Car Gen3 RPC-IF SPI driver Mason Yang
2019-01-28 6:49 ` [PATCH v8 1/2] spi: Add Renesas R-Car Gen3 RPC-IF SPI controller driver Mason Yang
2019-02-12 14:22 ` Applied "spi: Add Renesas R-Car Gen3 RPC-IF SPI controller driver" to the spi tree Mark Brown
2019-02-12 14:33 ` Marek Vasut
2019-02-12 14:43 ` Mark Brown
2019-02-12 16:49 ` Mark Brown
[not found] ` <OF9C8DA179.15D69C0A-ON482583A0.00283EB5-482583A0.002E45C8@mxic.com.tw>
2019-02-13 12:16 ` Mark Brown
2019-02-13 12:37 ` Marek Vasut
[not found] ` <OF9B3A3A20.C0BF34B8-ON482583A1.002D5F3B-482583A1.00329653@mxic.com.tw>
2019-02-14 10:52 ` Marek Vasut
2019-03-07 17:50 ` [PATCH v8 1/2] spi: Add Renesas R-Car Gen3 RPC-IF SPI controller driver Sergei Shtylyov
2019-03-08 9:14 ` Geert Uytterhoeven
2019-03-08 17:32 ` Sergei Shtylyov
2019-03-22 17:43 ` Sergei Shtylyov [this message]
[not found] ` <OF7C1EB3FC.1ABCD2C2-ON482583C8.002D7A69-482583C8.002E899C@mxic.com.tw>
2019-03-25 19:12 ` Sergei Shtylyov
2019-03-26 16:42 ` Sergei Shtylyov
[not found] ` <OF5BDFBDAB.B66A1ADE-ON482583CA.0006C5C2-482583CA.0008788E@mxic.com.tw>
2019-03-27 10:20 ` Sergei Shtylyov
2019-01-28 6:49 ` [PATCH v8 2/2] dt-bindings: spi: Document Renesas R-Car Gen3 RPC-IF controller bindings Mason Yang
2019-02-12 14:22 ` Applied "dt-bindings: spi: Document Renesas R-Car Gen3 RPC-IF controller bindings" to the spi tree Mark Brown
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